Answers

Add 40/42 and 84/36

1^st number: 40/42, 2^nd number: 2 12/36

40/42 + 84/36 is 23/7.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 36 is 252
   
   Next, find the equivalent fraction of both fractional numbers with denominator 252
2. For the 1st fraction, since 42 × 6 = 252,
   40/42 = 40 × 6/42 × 6 = 240/252
3. Likewise, for the 2nd fraction, since 36 × 7 = 252,
   84/36 = 84 × 7/36 × 7 = 588/252
4. Add the two like fractions:
   240/252 + 588/252 = 240 + 588/252 = 828/252
5. 828/252 simplified gives 23/7
6. So, 40/42 + 84/36 = 23/7
   In mixed form: 32/7

MathStep (Works offline)

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

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

Add Fractions Calculator