Answers

Add 45/36 and 70/84

1^st number: 1 9/36, 2^nd number: 70/84

45/36 + 70/84 is 25/12.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 36 and 84 is 252
   
   Next, find the equivalent fraction of both fractional numbers with denominator 252
2. For the 1st fraction, since 36 × 7 = 252,
   45/36 = 45 × 7/36 × 7 = 315/252
3. Likewise, for the 2nd fraction, since 84 × 3 = 252,
   70/84 = 70 × 3/84 × 3 = 210/252
4. Add the two like fractions:
   315/252 + 210/252 = 315 + 210/252 = 525/252
5. 525/252 simplified gives 25/12
6. So, 45/36 + 70/84 = 25/12
   In mixed form: 21/12

MathStep (Works offline)

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

Related: ⁹⁰/₃₆+⁷⁰/₈₄ ⁴⁵/₇₂+⁷⁰/₈₄

Add Fractions Calculator