Answers

Add 10/42 and 8/7

1^st number: 10/42, 2^nd number: 1 1/7

10/42 + 8/7 is 29/21.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 7 is 42
   
   Next, find the equivalent fraction of both fractional numbers with denominator 42
2. For the 1st fraction, since 42 × 1 = 42,
   10/42 = 10 × 1/42 × 1 = 10/42
3. Likewise, for the 2nd fraction, since 7 × 6 = 42,
   8/7 = 8 × 6/7 × 6 = 48/42
4. Add the two like fractions:
   10/42 + 48/42 = 10 + 48/42 = 58/42
5. 58/42 simplified gives 29/21
6. So, 10/42 + 8/7 = 29/21
   In mixed form: 18/21

MathStep (Works offline)

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

Related: ²⁰/₄₂+⁸/₇ ¹⁰/₄₂+¹⁶/₇ ¹⁰/₈₄+⁸/₇ ¹⁰/₄₂+⁸/₁₄ ³⁰/₄₂+⁸/₇ ¹⁰/₄₂+²⁴/₇ ¹⁰/₄₂+⁸/₂₁ ⁵⁰/₄₂+⁸/₇ ¹⁰/₄₂+⁴⁰/₇ ¹⁰/₄₂+⁸/₃₅ ⁷⁰/₄₂+⁸/₇ ¹⁰/₄₂+⁵⁶/₇ ¹⁰/₄₂+⁸/₄₉

Add Fractions Calculator