Let’s solve each problem step by step. When adding fractions with the same denominator (the bottom number), you just add the numerators (the top numbers) and keep the denominator the same.
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1.
$\frac{3}{7} + \frac{3}{7}$
Add tops: 3 + 3 = 6
Keep bottom: 7
→ $\frac{6}{7}$
2.
$\frac{2}{5} + \frac{1}{5}$
2 + 1 = 3
→ $\frac{3}{5}$
3.
$\frac{2}{9} + \frac{5}{9}$
2 + 5 = 7
→ $\frac{7}{9}$
4.
$\frac{1}{6} + \frac{4}{6}$
1 + 4 = 5
→ $\frac{5}{6}$
5.
$\frac{1}{4} + \frac{2}{4}$
1 + 2 = 3
→ $\frac{3}{4}$
6.
$\frac{1}{3} + \frac{1}{3}$
1 + 1 = 2
→ $\frac{2}{3}$
7.
$\frac{5}{7} + \frac{1}{7}$
5 + 1 = 6
→ $\frac{6}{7}$
8.
$\frac{5}{12} + \frac{6}{12}$
5 + 6 = 11
→ $\frac{11}{12}$
9.
$\frac{3}{5} + \frac{1}{5}$
3 + 1 = 4
→ $\frac{4}{5}$
10.
$\frac{3}{8} + \frac{4}{8}$
3 + 4 = 7
→ $\frac{7}{8}$
All answers are already in simplest form — no need to reduce further!
Final Answer:
1. $\frac{6}{7}$
2. $\frac{3}{5}$
3. $\frac{7}{9}$
4. $\frac{5}{6}$
5. $\frac{3}{4}$
6. $\frac{2}{3}$
7. $\frac{6}{7}$
8. $\frac{11}{12}$
9. $\frac{4}{5}$
10. $\frac{7}{8}$
Parent Tip: Review the logic above to help your child master the concept of fourth grade math fractions worksheet.