Answers

Add 36/42 and 40/63

36/42 + 40/63 is 94/63.

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,
   36/42 = 36 × 3/42 × 3 = 108/126
3. Likewise, for the 2nd fraction, since 63 × 2 = 126,
   40/63 = 40 × 2/63 × 2 = 80/126
4. Add the two like fractions:
   108/126 + 80/126 = 108 + 80/126 = 188/126
5. 188/126 simplified gives 94/63
6. So, 36/42 + 40/63 = 94/63
   In mixed form: 131/63

MathStep (Works offline)

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

Related: ⁷²/₄₂+⁴⁰/₆₃ ³⁶/₄₂+⁸⁰/₆₃ ³⁶/₈₄+⁴⁰/₆₃

Add Fractions Calculator