Math worksheet for practicing addition of improper fractions with unlike denominators.
Worksheet titled "Operations with Unlike Denominators" featuring 18 math problems involving addition of improper fractions with different denominators.
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Step-by-step solution for: Operations with Unlike Fractions Worksheets - 15 Worksheets Library
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Show Answer Key & Explanations
Step-by-step solution for: Operations with Unlike Fractions Worksheets - 15 Worksheets Library
To solve the problems involving addition of improper fractions with unlike denominators, we need to follow these steps:
1. Find a Common Denominator: The least common denominator (LCD) is the smallest number that is a multiple of all the denominators involved.
2. Adjust the Fractions: Rewrite each fraction with the common denominator by multiplying both the numerator and the denominator by the necessary factor.
3. Add the Numerators: Once the denominators are the same, add the numerators while keeping the denominator unchanged.
4. Simplify the Result: Reduce the resulting fraction to its simplest form if possible.
Let's solve each problem step by step.
---
1. Find the LCD: The denominators are 5 and 10. The LCD is 10.
2. Adjust the fractions:
- $\frac{9}{5} = \frac{9 \times 2}{5 \times 2} = \frac{18}{10}$
- $\frac{15}{10}$ remains $\frac{15}{10}$.
3. Add the numerators:
$$
\frac{18}{10} + \frac{15}{10} = \frac{18 + 15}{10} = \frac{33}{10}
$$
4. Simplify: $\frac{33}{10}$ is already in simplest form.
Answer: $\boxed{\frac{33}{10}}$
---
1. Find the LCD: The denominators are 4 and 5. The LCD is 20.
2. Adjust the fractions:
- $\frac{18}{4} = \frac{18 \times 5}{4 \times 5} = \frac{90}{20}$
- $\frac{7}{5} = \frac{7 \times 4}{5 \times 4} = \frac{28}{20}$
3. Add the numerators:
$$
\frac{90}{20} + \frac{28}{20} = \frac{90 + 28}{20} = \frac{118}{20}
$$
4. Simplify: Divide numerator and denominator by their greatest common divisor (GCD), which is 2:
$$
\frac{118}{20} = \frac{59}{10}
$$
Answer: $\boxed{\frac{59}{10}}$
---
1. Find the LCD: The denominators are 6 and 12. The LCD is 12.
2. Adjust the fractions:
- $\frac{15}{6} = \frac{15 \times 2}{6 \times 2} = \frac{30}{12}$
- $\frac{19}{12}$ remains $\frac{19}{12}$.
3. Add the numerators:
$$
\frac{30}{12} + \frac{19}{12} = \frac{30 + 19}{12} = \frac{49}{12}
$$
4. Simplify: $\frac{49}{12}$ is already in simplest form.
Answer: $\boxed{\frac{49}{12}}$
---
1. Find the LCD: The denominators are 15 and 5. The LCD is 15.
2. Adjust the fractions:
- $\frac{21}{15}$ remains $\frac{21}{15}$.
- $\frac{12}{5} = \frac{12 \times 3}{5 \times 3} = \frac{36}{15}$
3. Add the numerators:
$$
\frac{21}{15} + \frac{36}{15} = \frac{21 + 36}{15} = \frac{57}{15}
$$
4. Simplify: Divide numerator and denominator by their GCD, which is 3:
$$
\frac{57}{15} = \frac{19}{5}
$$
Answer: $\boxed{\frac{19}{5}}$
---
1. Find the LCD: The denominators are 12 and 9. The LCD is 36.
2. Adjust the fractions:
- $\frac{18}{12} = \frac{18 \times 3}{12 \times 3} = \frac{54}{36}$
- $\frac{21}{9} = \frac{21 \times 4}{9 \times 4} = \frac{84}{36}$
3. Add the numerators:
$$
\frac{54}{36} + \frac{84}{36} = \frac{54 + 84}{36} = \frac{138}{36}
$$
4. Simplify: Divide numerator and denominator by their GCD, which is 6:
$$
\frac{138}{36} = \frac{23}{6}
$$
Answer: $\boxed{\frac{23}{6}}$
---
1. Find the LCD: The denominators are 15 and 3. The LCD is 15.
2. Adjust the fractions:
- $\frac{25}{15}$ remains $\frac{25}{15}$.
- $\frac{20}{3} = \frac{20 \times 5}{3 \times 5} = \frac{100}{15}$
3. Add the numerators:
$$
\frac{25}{15} + \frac{100}{15} = \frac{25 + 100}{15} = \frac{125}{15}
$$
4. Simplify: Divide numerator and denominator by their GCD, which is 5:
$$
\frac{125}{15} = \frac{25}{3}
$$
Answer: $\boxed{\frac{25}{3}}$
---
1. Find the LCD: The denominators are 5 and 3. The LCD is 15.
2. Adjust the fractions:
- $\frac{9}{5} = \frac{9 \times 3}{5 \times 3} = \frac{27}{15}$
- $\frac{10}{3} = \frac{10 \times 5}{3 \times 5} = \frac{50}{15}$
3. Add the numerators:
$$
\frac{27}{15} + \frac{50}{15} = \frac{27 + 50}{15} = \frac{77}{15}
$$
4. Simplify: $\frac{77}{15}$ is already in simplest form.
Answer: $\boxed{\frac{77}{15}}$
---
1. Find the LCD: The denominators are 9 and 3. The LCD is 9.
2. Adjust the fractions:
- $\frac{14}{9}$ remains $\frac{14}{9}$.
- $\frac{5}{3} = \frac{5 \times 3}{3 \times 3} = \frac{15}{9}$
3. Add the numerators:
$$
\frac{14}{9} + \frac{15}{9} = \frac{14 + 15}{9} = \frac{29}{9}
$$
4. Simplify: $\frac{29}{9}$ is already in simplest form.
Answer: $\boxed{\frac{29}{9}}$
---
1. Find the LCD: The denominators are 15 and 5. The LCD is 15.
2. Adjust the fractions:
- $\frac{2}{15}$ remains $\frac{2}{15}$.
- $\frac{12}{5} = \frac{12 \times 3}{5 \times 3} = \frac{36}{15}$
3. Add the numerators:
$$
\frac{2}{15} + \frac{36}{15} = \frac{2 + 36}{15} = \frac{38}{15}
$$
4. Simplify: $\frac{38}{15}$ is already in simplest form.
Answer: $\boxed{\frac{38}{15}}$
---
1. Find the LCD: The denominators are 9 and 5. The LCD is 45.
2. Adjust the fractions:
- $\frac{15}{9} = \frac{15 \times 5}{9 \times 5} = \frac{75}{45}$
- $\frac{9}{5} = \frac{9 \times 9}{5 \times 9} = \frac{81}{45}$
3. Add the numerators:
$$
\frac{75}{45} + \frac{81}{45} = \frac{75 + 81}{45} = \frac{156}{45}
$$
4. Simplify: Divide numerator and denominator by their GCD, which is 3:
$$
\frac{156}{45} = \frac{52}{15}
$$
Answer: $\boxed{\frac{52}{15}}$
---
1. Find the LCD: The denominators are 10 and 5. The LCD is 10.
2. Adjust the fractions:
- $\frac{18}{10}$ remains $\frac{18}{10}$.
- $\frac{14}{5} = \frac{14 \times 2}{5 \times 2} = \frac{28}{10}$
3. Add the numerators:
$$
\frac{18}{10} + \frac{28}{10} = \frac{18 + 28}{10} = \frac{46}{10}
$$
4. Simplify: Divide numerator and denominator by their GCD, which is 2:
$$
\frac{46}{10} = \frac{23}{5}
$$
Answer: $\boxed{\frac{23}{5}}$
---
1. Find the LCD: The denominators are 9 and 3. The LCD is 9.
2. Adjust the fractions:
- $\frac{12}{9}$ remains $\frac{12}{9}$.
- $\frac{4}{3} = \frac{4 \times 3}{3 \times 3} = \frac{12}{9}$
3. Add the numerators:
$$
\frac{12}{9} + \frac{12}{9} = \frac{12 + 12}{9} = \frac{24}{9}
$$
4. Simplify: Divide numerator and denominator by their GCD, which is 3:
$$
\frac{24}{9} = \frac{8}{3}
$$
Answer: $\boxed{\frac{8}{3}}$
---
1. Find the LCD: The denominators are 15 and 10. The LCD is 30.
2. Adjust the fractions:
- $\frac{21}{15} = \frac{21 \times 2}{15 \times 2} = \frac{42}{30}$
- $\frac{17}{10} = \frac{17 \times 3}{10 \times 3} = \frac{51}{30}$
3. Add the numerators:
$$
\frac{42}{30} + \frac{51}{30} = \frac{42 + 51}{30} = \frac{93}{30}
$$
4. Simplify: Divide numerator and denominator by their GCD, which is 3:
$$
\frac{93}{30} = \frac{31}{10}
$$
Answer: $\boxed{\frac{31}{10}}$
---
1. Find the LCD: The denominators are 12 and 4. The LCD is 12.
2. Adjust the fractions:
- $\frac{30}{12}$ remains $\frac{30}{12}$.
- $\frac{15}{4} = \frac{15 \times 3}{4 \times 3} = \frac{45}{12}$
3. Add the numerators:
$$
\frac{30}{12} + \frac{45}{12} = \frac{30 + 45}{12} = \frac{75}{12}
$$
4. Simplify: Divide numerator and denominator by their GCD, which is 3:
$$
\frac{75}{12} = \frac{25}{4}
$$
Answer: $\boxed{\frac{25}{4}}$
---
1. Find the LCD: The denominators are 14 and 2. The LCD is 14.
2. Adjust the fractions:
- $\frac{19}{14}$ remains $\frac{19}{14}$.
- $\frac{7}{2} = \frac{7 \times 7}{2 \times 7} = \frac{49}{14}$
3. Add the numerators:
$$
\frac{19}{14} + \frac{49}{14} = \frac{19 + 49}{14} = \frac{68}{14}
$$
4. Simplify: Divide numerator and denominator by their GCD, which is 2:
$$
\frac{68}{14} = \frac{34}{7}
$$
Answer: $\boxed{\frac{34}{7}}$
---
1. Find the LCD: The denominators are 4 and 8. The LCD is 8.
2. Adjust the fractions:
- $\frac{15}{4} = \frac{15 \times 2}{4 \times 2} = \frac{30}{8}$
- $\frac{25}{8}$ remains $\frac{25}{8}$.
3. Add the numerators:
$$
\frac{30}{8} + \frac{25}{8} = \frac{30 + 25}{8} = \frac{55}{8}
$$
4. Simplify: $\frac{55}{8}$ is already in simplest form.
Answer: $\boxed{\frac{55}{8}}$
---
1. Find the LCD: The denominators are 7 and 2. The LCD is 14.
2. Adjust the fractions:
- $\frac{10}{7} = \frac{10 \times 2}{7 \times 2} = \frac{20}{14}$
- $\frac{5}{2} = \frac{5 \times 7}{2 \times 7} = \frac{35}{14}$
3. Add the numerators:
$$
\frac{20}{14} + \frac{35}{14} = \frac{20 + 35}{14} = \frac{55}{14}
$$
4. Simplify: $\frac{55}{14}$ is already in simplest form.
Answer: $\boxed{\frac{55}{14}}$
---
1. Find the LCD: The denominators are 3 and 15. The LCD is 15.
2. Adjust the fractions:
- $\frac{7}{3} = \frac{7 \times 5}{3 \times 5} = \frac{35}{15}$
- $\frac{21}{15}$ remains $\frac{21}{15}$.
3. Add the numerators:
$$
\frac{35}{15} + \frac{21}{15} = \frac{35 + 21}{15} = \frac{56}{15}
$$
4. Simplify: $\frac{56}{15}$ is already in simplest form.
Answer: $\boxed{\frac{56}{15}}$
---
1. $\boxed{\frac{33}{10}}$
2. $\boxed{\frac{59}{10}}$
3. $\boxed{\frac{49}{12}}$
4. $\boxed{\frac{19}{5}}$
5. $\boxed{\frac{23}{6}}$
6. $\boxed{\frac{25}{3}}$
7. $\boxed{\frac{77}{15}}$
8. $\boxed{\frac{29}{9}}$
9. $\boxed{\frac{38}{15}}$
10. $\boxed{\frac{52}{15}}$
11. $\boxed{\frac{23}{5}}$
12. $\boxed{\frac{8}{3}}$
13. $\boxed{\frac{31}{10}}$
14. $\boxed{\frac{25}{4}}$
15. $\boxed{\frac{34}{7}}$
16. $\boxed{\frac{55}{8}}$
17. $\boxed{\frac{55}{14}}$
18. $\boxed{\frac{56}{15}}$
Steps:
1. Find a Common Denominator: The least common denominator (LCD) is the smallest number that is a multiple of all the denominators involved.
2. Adjust the Fractions: Rewrite each fraction with the common denominator by multiplying both the numerator and the denominator by the necessary factor.
3. Add the Numerators: Once the denominators are the same, add the numerators while keeping the denominator unchanged.
4. Simplify the Result: Reduce the resulting fraction to its simplest form if possible.
Let's solve each problem step by step.
---
Problem 1: $\frac{9}{5} + \frac{15}{10}$
1. Find the LCD: The denominators are 5 and 10. The LCD is 10.
2. Adjust the fractions:
- $\frac{9}{5} = \frac{9 \times 2}{5 \times 2} = \frac{18}{10}$
- $\frac{15}{10}$ remains $\frac{15}{10}$.
3. Add the numerators:
$$
\frac{18}{10} + \frac{15}{10} = \frac{18 + 15}{10} = \frac{33}{10}
$$
4. Simplify: $\frac{33}{10}$ is already in simplest form.
Answer: $\boxed{\frac{33}{10}}$
---
Problem 2: $\frac{18}{4} + \frac{7}{5}$
1. Find the LCD: The denominators are 4 and 5. The LCD is 20.
2. Adjust the fractions:
- $\frac{18}{4} = \frac{18 \times 5}{4 \times 5} = \frac{90}{20}$
- $\frac{7}{5} = \frac{7 \times 4}{5 \times 4} = \frac{28}{20}$
3. Add the numerators:
$$
\frac{90}{20} + \frac{28}{20} = \frac{90 + 28}{20} = \frac{118}{20}
$$
4. Simplify: Divide numerator and denominator by their greatest common divisor (GCD), which is 2:
$$
\frac{118}{20} = \frac{59}{10}
$$
Answer: $\boxed{\frac{59}{10}}$
---
Problem 3: $\frac{15}{6} + \frac{19}{12}$
1. Find the LCD: The denominators are 6 and 12. The LCD is 12.
2. Adjust the fractions:
- $\frac{15}{6} = \frac{15 \times 2}{6 \times 2} = \frac{30}{12}$
- $\frac{19}{12}$ remains $\frac{19}{12}$.
3. Add the numerators:
$$
\frac{30}{12} + \frac{19}{12} = \frac{30 + 19}{12} = \frac{49}{12}
$$
4. Simplify: $\frac{49}{12}$ is already in simplest form.
Answer: $\boxed{\frac{49}{12}}$
---
Problem 4: $\frac{21}{15} + \frac{12}{5}$
1. Find the LCD: The denominators are 15 and 5. The LCD is 15.
2. Adjust the fractions:
- $\frac{21}{15}$ remains $\frac{21}{15}$.
- $\frac{12}{5} = \frac{12 \times 3}{5 \times 3} = \frac{36}{15}$
3. Add the numerators:
$$
\frac{21}{15} + \frac{36}{15} = \frac{21 + 36}{15} = \frac{57}{15}
$$
4. Simplify: Divide numerator and denominator by their GCD, which is 3:
$$
\frac{57}{15} = \frac{19}{5}
$$
Answer: $\boxed{\frac{19}{5}}$
---
Problem 5: $\frac{18}{12} + \frac{21}{9}$
1. Find the LCD: The denominators are 12 and 9. The LCD is 36.
2. Adjust the fractions:
- $\frac{18}{12} = \frac{18 \times 3}{12 \times 3} = \frac{54}{36}$
- $\frac{21}{9} = \frac{21 \times 4}{9 \times 4} = \frac{84}{36}$
3. Add the numerators:
$$
\frac{54}{36} + \frac{84}{36} = \frac{54 + 84}{36} = \frac{138}{36}
$$
4. Simplify: Divide numerator and denominator by their GCD, which is 6:
$$
\frac{138}{36} = \frac{23}{6}
$$
Answer: $\boxed{\frac{23}{6}}$
---
Problem 6: $\frac{25}{15} + \frac{20}{3}$
1. Find the LCD: The denominators are 15 and 3. The LCD is 15.
2. Adjust the fractions:
- $\frac{25}{15}$ remains $\frac{25}{15}$.
- $\frac{20}{3} = \frac{20 \times 5}{3 \times 5} = \frac{100}{15}$
3. Add the numerators:
$$
\frac{25}{15} + \frac{100}{15} = \frac{25 + 100}{15} = \frac{125}{15}
$$
4. Simplify: Divide numerator and denominator by their GCD, which is 5:
$$
\frac{125}{15} = \frac{25}{3}
$$
Answer: $\boxed{\frac{25}{3}}$
---
Problem 7: $\frac{9}{5} + \frac{10}{3}$
1. Find the LCD: The denominators are 5 and 3. The LCD is 15.
2. Adjust the fractions:
- $\frac{9}{5} = \frac{9 \times 3}{5 \times 3} = \frac{27}{15}$
- $\frac{10}{3} = \frac{10 \times 5}{3 \times 5} = \frac{50}{15}$
3. Add the numerators:
$$
\frac{27}{15} + \frac{50}{15} = \frac{27 + 50}{15} = \frac{77}{15}
$$
4. Simplify: $\frac{77}{15}$ is already in simplest form.
Answer: $\boxed{\frac{77}{15}}$
---
Problem 8: $\frac{14}{9} + \frac{5}{3}$
1. Find the LCD: The denominators are 9 and 3. The LCD is 9.
2. Adjust the fractions:
- $\frac{14}{9}$ remains $\frac{14}{9}$.
- $\frac{5}{3} = \frac{5 \times 3}{3 \times 3} = \frac{15}{9}$
3. Add the numerators:
$$
\frac{14}{9} + \frac{15}{9} = \frac{14 + 15}{9} = \frac{29}{9}
$$
4. Simplify: $\frac{29}{9}$ is already in simplest form.
Answer: $\boxed{\frac{29}{9}}$
---
Problem 9: $\frac{2}{15} + \frac{12}{5}$
1. Find the LCD: The denominators are 15 and 5. The LCD is 15.
2. Adjust the fractions:
- $\frac{2}{15}$ remains $\frac{2}{15}$.
- $\frac{12}{5} = \frac{12 \times 3}{5 \times 3} = \frac{36}{15}$
3. Add the numerators:
$$
\frac{2}{15} + \frac{36}{15} = \frac{2 + 36}{15} = \frac{38}{15}
$$
4. Simplify: $\frac{38}{15}$ is already in simplest form.
Answer: $\boxed{\frac{38}{15}}$
---
Problem 10: $\frac{15}{9} + \frac{9}{5}$
1. Find the LCD: The denominators are 9 and 5. The LCD is 45.
2. Adjust the fractions:
- $\frac{15}{9} = \frac{15 \times 5}{9 \times 5} = \frac{75}{45}$
- $\frac{9}{5} = \frac{9 \times 9}{5 \times 9} = \frac{81}{45}$
3. Add the numerators:
$$
\frac{75}{45} + \frac{81}{45} = \frac{75 + 81}{45} = \frac{156}{45}
$$
4. Simplify: Divide numerator and denominator by their GCD, which is 3:
$$
\frac{156}{45} = \frac{52}{15}
$$
Answer: $\boxed{\frac{52}{15}}$
---
Problem 11: $\frac{18}{10} + \frac{14}{5}$
1. Find the LCD: The denominators are 10 and 5. The LCD is 10.
2. Adjust the fractions:
- $\frac{18}{10}$ remains $\frac{18}{10}$.
- $\frac{14}{5} = \frac{14 \times 2}{5 \times 2} = \frac{28}{10}$
3. Add the numerators:
$$
\frac{18}{10} + \frac{28}{10} = \frac{18 + 28}{10} = \frac{46}{10}
$$
4. Simplify: Divide numerator and denominator by their GCD, which is 2:
$$
\frac{46}{10} = \frac{23}{5}
$$
Answer: $\boxed{\frac{23}{5}}$
---
Problem 12: $\frac{12}{9} + \frac{4}{3}$
1. Find the LCD: The denominators are 9 and 3. The LCD is 9.
2. Adjust the fractions:
- $\frac{12}{9}$ remains $\frac{12}{9}$.
- $\frac{4}{3} = \frac{4 \times 3}{3 \times 3} = \frac{12}{9}$
3. Add the numerators:
$$
\frac{12}{9} + \frac{12}{9} = \frac{12 + 12}{9} = \frac{24}{9}
$$
4. Simplify: Divide numerator and denominator by their GCD, which is 3:
$$
\frac{24}{9} = \frac{8}{3}
$$
Answer: $\boxed{\frac{8}{3}}$
---
Problem 13: $\frac{21}{15} + \frac{17}{10}$
1. Find the LCD: The denominators are 15 and 10. The LCD is 30.
2. Adjust the fractions:
- $\frac{21}{15} = \frac{21 \times 2}{15 \times 2} = \frac{42}{30}$
- $\frac{17}{10} = \frac{17 \times 3}{10 \times 3} = \frac{51}{30}$
3. Add the numerators:
$$
\frac{42}{30} + \frac{51}{30} = \frac{42 + 51}{30} = \frac{93}{30}
$$
4. Simplify: Divide numerator and denominator by their GCD, which is 3:
$$
\frac{93}{30} = \frac{31}{10}
$$
Answer: $\boxed{\frac{31}{10}}$
---
Problem 14: $\frac{30}{12} + \frac{15}{4}$
1. Find the LCD: The denominators are 12 and 4. The LCD is 12.
2. Adjust the fractions:
- $\frac{30}{12}$ remains $\frac{30}{12}$.
- $\frac{15}{4} = \frac{15 \times 3}{4 \times 3} = \frac{45}{12}$
3. Add the numerators:
$$
\frac{30}{12} + \frac{45}{12} = \frac{30 + 45}{12} = \frac{75}{12}
$$
4. Simplify: Divide numerator and denominator by their GCD, which is 3:
$$
\frac{75}{12} = \frac{25}{4}
$$
Answer: $\boxed{\frac{25}{4}}$
---
Problem 15: $\frac{19}{14} + \frac{7}{2}$
1. Find the LCD: The denominators are 14 and 2. The LCD is 14.
2. Adjust the fractions:
- $\frac{19}{14}$ remains $\frac{19}{14}$.
- $\frac{7}{2} = \frac{7 \times 7}{2 \times 7} = \frac{49}{14}$
3. Add the numerators:
$$
\frac{19}{14} + \frac{49}{14} = \frac{19 + 49}{14} = \frac{68}{14}
$$
4. Simplify: Divide numerator and denominator by their GCD, which is 2:
$$
\frac{68}{14} = \frac{34}{7}
$$
Answer: $\boxed{\frac{34}{7}}$
---
Problem 16: $\frac{15}{4} + \frac{25}{8}$
1. Find the LCD: The denominators are 4 and 8. The LCD is 8.
2. Adjust the fractions:
- $\frac{15}{4} = \frac{15 \times 2}{4 \times 2} = \frac{30}{8}$
- $\frac{25}{8}$ remains $\frac{25}{8}$.
3. Add the numerators:
$$
\frac{30}{8} + \frac{25}{8} = \frac{30 + 25}{8} = \frac{55}{8}
$$
4. Simplify: $\frac{55}{8}$ is already in simplest form.
Answer: $\boxed{\frac{55}{8}}$
---
Problem 17: $\frac{10}{7} + \frac{5}{2}$
1. Find the LCD: The denominators are 7 and 2. The LCD is 14.
2. Adjust the fractions:
- $\frac{10}{7} = \frac{10 \times 2}{7 \times 2} = \frac{20}{14}$
- $\frac{5}{2} = \frac{5 \times 7}{2 \times 7} = \frac{35}{14}$
3. Add the numerators:
$$
\frac{20}{14} + \frac{35}{14} = \frac{20 + 35}{14} = \frac{55}{14}
$$
4. Simplify: $\frac{55}{14}$ is already in simplest form.
Answer: $\boxed{\frac{55}{14}}$
---
Problem 18: $\frac{7}{3} + \frac{21}{15}$
1. Find the LCD: The denominators are 3 and 15. The LCD is 15.
2. Adjust the fractions:
- $\frac{7}{3} = \frac{7 \times 5}{3 \times 5} = \frac{35}{15}$
- $\frac{21}{15}$ remains $\frac{21}{15}$.
3. Add the numerators:
$$
\frac{35}{15} + \frac{21}{15} = \frac{35 + 21}{15} = \frac{56}{15}
$$
4. Simplify: $\frac{56}{15}$ is already in simplest form.
Answer: $\boxed{\frac{56}{15}}$
---
Final Answers:
1. $\boxed{\frac{33}{10}}$
2. $\boxed{\frac{59}{10}}$
3. $\boxed{\frac{49}{12}}$
4. $\boxed{\frac{19}{5}}$
5. $\boxed{\frac{23}{6}}$
6. $\boxed{\frac{25}{3}}$
7. $\boxed{\frac{77}{15}}$
8. $\boxed{\frac{29}{9}}$
9. $\boxed{\frac{38}{15}}$
10. $\boxed{\frac{52}{15}}$
11. $\boxed{\frac{23}{5}}$
12. $\boxed{\frac{8}{3}}$
13. $\boxed{\frac{31}{10}}$
14. $\boxed{\frac{25}{4}}$
15. $\boxed{\frac{34}{7}}$
16. $\boxed{\frac{55}{8}}$
17. $\boxed{\frac{55}{14}}$
18. $\boxed{\frac{56}{15}}$
Parent Tip: Review the logic above to help your child master the concept of adding and subtracting unlike fractions worksheet.
