Answers

Add 18/42 and 70/63

1^st number: 18/42, 2^nd number: 1 7/63

18/42 + 70/63 is 97/63.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 63 is 126
   
   Next, find the equivalent fraction of both fractional numbers with denominator 126
2. For the 1st fraction, since 42 × 3 = 126,
   18/42 = 18 × 3/42 × 3 = 54/126
3. Likewise, for the 2nd fraction, since 63 × 2 = 126,
   70/63 = 70 × 2/63 × 2 = 140/126
4. Add the two like fractions:
   54/126 + 140/126 = 54 + 140/126 = 194/126
5. 194/126 simplified gives 97/63
6. So, 18/42 + 70/63 = 97/63
   In mixed form: 134/63

MathStep (Works offline)

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

Related: ³⁶/₄₂+⁷⁰/₆₃ ¹⁸/₈₄+⁷⁰/₆₃ ⁵⁴/₄₂+⁷⁰/₆₃ ⁹⁰/₄₂+⁷⁰/₆₃

Add Fractions Calculator