Dividing Fractions practice worksheet with 12 problems for math students.
Worksheet titled "Dividing Fractions" with 12 problems involving fraction division, including examples like 2/10 ÷ 3/5 and 25/27 ÷ 4/3, from Mometrix Test Preparation.
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Step-by-step solution for: Multiply and Divide Fractions (Review Video, Practice & Worksheets)
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Show Answer Key & Explanations
Step-by-step solution for: Multiply and Divide Fractions (Review Video, Practice & Worksheets)
Let's solve each of these fraction division problems step by step. The general rule for dividing fractions is:
> To divide fractions, multiply the first fraction by the reciprocal of the second fraction.
That is:
$$
\frac{a}{b} \div \frac{c}{d} = \frac{a}{b} \times \frac{d}{c}
$$
We'll apply this rule to each problem.
---
- Reciprocal of $\frac{3}{5}$ is $\frac{5}{3}$
- Multiply: $\frac{2}{10} \times \frac{5}{3} = \frac{10}{30} = \frac{1}{3}$
✔ Answer: $\frac{1}{3}$
---
- Reciprocal of $\frac{4}{3}$ is $\frac{3}{4}$
- Multiply: $\frac{25}{27} \times \frac{3}{4} = \frac{75}{108}$
- Simplify: Divide numerator and denominator by 3 → $\frac{25}{36}$
✔ Answer: $\frac{25}{36}$
---
- Reciprocal of $\frac{3}{2}$ is $\frac{2}{3}$
- Multiply: $\frac{1}{5} \times \frac{2}{3} = \frac{2}{15}$
✔ Answer: $\frac{2}{15}$
---
- Reciprocal of $\frac{9}{11}$ is $\frac{11}{9}$
- Multiply: $\frac{1}{2} \times \frac{11}{9} = \frac{11}{18}$
✔ Answer: $\frac{11}{18}$
---
- Reciprocal of $\frac{10}{7}$ is $\frac{7}{10}$
- Multiply: $\frac{5}{2} \times \frac{7}{10} = \frac{35}{20} = \frac{7}{4}$
✔ Answer: $\frac{7}{4}$ or $1\frac{3}{4}$
---
- First simplify $\frac{30}{42}$: divide numerator and denominator by 6 → $\frac{5}{7}$
- Now: $\frac{5}{7} \div \frac{5}{6}$
- Reciprocal of $\frac{5}{6}$ is $\frac{6}{5}$
- Multiply: $\frac{5}{7} \times \frac{6}{5} = \frac{30}{35} = \frac{6}{7}$
✔ Answer: $\frac{6}{7}$
---
- Same denominator, so we can simplify:
- $\frac{7}{25} \times \frac{25}{13} = \frac{7 \times 25}{25 \times 13} = \frac{7}{13}$ (the 25s cancel)
✔ Answer: $\frac{7}{13}$
---
- Simplify both fractions:
- $\frac{20}{125} = \frac{4}{25}$ (divide by 5)
- $\frac{5}{25} = \frac{1}{5}$
- So: $\frac{4}{25} \div \frac{1}{5} = \frac{4}{25} \times \frac{5}{1} = \frac{20}{25} = \frac{4}{5}$
✔ Answer: $\frac{4}{5}$
---
- Same denominator, so:
- $\frac{36}{5} \times \frac{5}{6} = \frac{36 \times 5}{5 \times 6} = \frac{36}{6} = 6$ (5s cancel)
✔ Answer: $6$
---
- Reciprocal of $\frac{9}{7}$ is $\frac{7}{9}$
- Multiply: $\frac{12}{13} \times \frac{7}{9} = \frac{84}{117}$
- Simplify: divide numerator and denominator by 3 → $\frac{28}{39}$
✔ Answer: $\frac{28}{39}$
---
- Same denominator, so:
- $\frac{75}{19} \times \frac{19}{100} = \frac{75 \times 19}{19 \times 100} = \frac{75}{100} = \frac{3}{4}$ (19 cancels)
✔ Answer: $\frac{3}{4}$
---
- Simplify $\frac{100}{60} = \frac{5}{3}$ (divide by 20)
- Simplify $\frac{2}{30} = \frac{1}{15}$
- Now: $\frac{5}{3} \div \frac{1}{15} = \frac{5}{3} \times \frac{15}{1} = \frac{75}{3} = 25$
✔ Answer: $25$
---
1. $\frac{1}{3}$
2. $\frac{25}{36}$
3. $\frac{2}{15}$
4. $\frac{11}{18}$
5. $\frac{7}{4}$
6. $\frac{6}{7}$
7. $\frac{7}{13}$
8. $\frac{4}{5}$
9. $6$
10. $\frac{28}{39}$
11. $\frac{3}{4}$
12. $25$
---
All problems follow the same principle: invert and multiply. Be sure to simplify fractions when possible — especially before multiplying to make calculations easier.
Let me know if you'd like a printable version or explanation in video format!
> To divide fractions, multiply the first fraction by the reciprocal of the second fraction.
That is:
$$
\frac{a}{b} \div \frac{c}{d} = \frac{a}{b} \times \frac{d}{c}
$$
We'll apply this rule to each problem.
---
1. $\frac{2}{10} \div \frac{3}{5}$
- Reciprocal of $\frac{3}{5}$ is $\frac{5}{3}$
- Multiply: $\frac{2}{10} \times \frac{5}{3} = \frac{10}{30} = \frac{1}{3}$
✔ Answer: $\frac{1}{3}$
---
2. $\frac{25}{27} \div \frac{4}{3}$
- Reciprocal of $\frac{4}{3}$ is $\frac{3}{4}$
- Multiply: $\frac{25}{27} \times \frac{3}{4} = \frac{75}{108}$
- Simplify: Divide numerator and denominator by 3 → $\frac{25}{36}$
✔ Answer: $\frac{25}{36}$
---
3. $\frac{1}{5} \div \frac{3}{2}$
- Reciprocal of $\frac{3}{2}$ is $\frac{2}{3}$
- Multiply: $\frac{1}{5} \times \frac{2}{3} = \frac{2}{15}$
✔ Answer: $\frac{2}{15}$
---
4. $\frac{1}{2} \div \frac{9}{11}$
- Reciprocal of $\frac{9}{11}$ is $\frac{11}{9}$
- Multiply: $\frac{1}{2} \times \frac{11}{9} = \frac{11}{18}$
✔ Answer: $\frac{11}{18}$
---
5. $\frac{5}{2} \div \frac{10}{7}$
- Reciprocal of $\frac{10}{7}$ is $\frac{7}{10}$
- Multiply: $\frac{5}{2} \times \frac{7}{10} = \frac{35}{20} = \frac{7}{4}$
✔ Answer: $\frac{7}{4}$ or $1\frac{3}{4}$
---
6. $\frac{30}{42} \div \frac{5}{6}$
- First simplify $\frac{30}{42}$: divide numerator and denominator by 6 → $\frac{5}{7}$
- Now: $\frac{5}{7} \div \frac{5}{6}$
- Reciprocal of $\frac{5}{6}$ is $\frac{6}{5}$
- Multiply: $\frac{5}{7} \times \frac{6}{5} = \frac{30}{35} = \frac{6}{7}$
✔ Answer: $\frac{6}{7}$
---
7. $\frac{7}{25} \div \frac{13}{25}$
- Same denominator, so we can simplify:
- $\frac{7}{25} \times \frac{25}{13} = \frac{7 \times 25}{25 \times 13} = \frac{7}{13}$ (the 25s cancel)
✔ Answer: $\frac{7}{13}$
---
8. $\frac{20}{125} \div \frac{5}{25}$
- Simplify both fractions:
- $\frac{20}{125} = \frac{4}{25}$ (divide by 5)
- $\frac{5}{25} = \frac{1}{5}$
- So: $\frac{4}{25} \div \frac{1}{5} = \frac{4}{25} \times \frac{5}{1} = \frac{20}{25} = \frac{4}{5}$
✔ Answer: $\frac{4}{5}$
---
9. $\frac{36}{5} \div \frac{6}{5}$
- Same denominator, so:
- $\frac{36}{5} \times \frac{5}{6} = \frac{36 \times 5}{5 \times 6} = \frac{36}{6} = 6$ (5s cancel)
✔ Answer: $6$
---
10. $\frac{12}{13} \div \frac{9}{7}$
- Reciprocal of $\frac{9}{7}$ is $\frac{7}{9}$
- Multiply: $\frac{12}{13} \times \frac{7}{9} = \frac{84}{117}$
- Simplify: divide numerator and denominator by 3 → $\frac{28}{39}$
✔ Answer: $\frac{28}{39}$
---
11. $\frac{75}{19} \div \frac{100}{19}$
- Same denominator, so:
- $\frac{75}{19} \times \frac{19}{100} = \frac{75 \times 19}{19 \times 100} = \frac{75}{100} = \frac{3}{4}$ (19 cancels)
✔ Answer: $\frac{3}{4}$
---
12. $\frac{100}{60} \div \frac{2}{30}$
- Simplify $\frac{100}{60} = \frac{5}{3}$ (divide by 20)
- Simplify $\frac{2}{30} = \frac{1}{15}$
- Now: $\frac{5}{3} \div \frac{1}{15} = \frac{5}{3} \times \frac{15}{1} = \frac{75}{3} = 25$
✔ Answer: $25$
---
✔ Final Answers:
1. $\frac{1}{3}$
2. $\frac{25}{36}$
3. $\frac{2}{15}$
4. $\frac{11}{18}$
5. $\frac{7}{4}$
6. $\frac{6}{7}$
7. $\frac{7}{13}$
8. $\frac{4}{5}$
9. $6$
10. $\frac{28}{39}$
11. $\frac{3}{4}$
12. $25$
---
📝 Summary:
All problems follow the same principle: invert and multiply. Be sure to simplify fractions when possible — especially before multiplying to make calculations easier.
Let me know if you'd like a printable version or explanation in video format!
Parent Tip: Review the logic above to help your child master the concept of multiply and divide fractions worksheet.