Answers

Add 10/18 and 56/21

1^st number: 10/18, 2^nd number: 2 14/21

10/18 + 56/21 is 29/9.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 21 is 126
2. For the 1st fraction, since 18 × 7 = 126,
   10/18 = 10 × 7/18 × 7 = 70/126
3. Likewise, for the 2nd fraction, since 21 × 6 = 126,
   56/21 = 56 × 6/21 × 6 = 336/126
4. Add the two fractions:
   70/126 + 336/126 = 70 + 336/126 = 406/126
5. After reducing the fraction, the answer is 29/9
6. In mixed form: 32/9

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad

Related: ²⁰/₁₈+⁵⁶/₂₁ ¹⁰/₃₆+⁵⁶/₂₁ ¹⁰/₁₈+⁵⁶/₄₂ ³⁰/₁₈+⁵⁶/₂₁ ¹⁰/₅₄+⁵⁶/₂₁ ¹⁰/₁₈+⁵⁶/₆₃ ⁵⁰/₁₈+⁵⁶/₂₁ ¹⁰/₉₀+⁵⁶/₂₁ ⁷⁰/₁₈+⁵⁶/₂₁

Add Fractions Calculator