Answers

Add 28/84 and 40/27

1^st number: 28/84, 2^nd number: 1 13/27

28/84 + 40/27 is 49/27.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 27 is 756
   
   Next, find the equivalent fraction of both fractional numbers with denominator 756
2. For the 1st fraction, since 84 × 9 = 756,
   28/84 = 28 × 9/84 × 9 = 252/756
3. Likewise, for the 2nd fraction, since 27 × 28 = 756,
   40/27 = 40 × 28/27 × 28 = 1120/756
4. Add the two like fractions:
   252/756 + 1120/756 = 252 + 1120/756 = 1372/756
5. 1372/756 simplified gives 49/27
6. So, 28/84 + 40/27 = 49/27
   In mixed form: 122/27

MathStep (Works offline)

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

Related: ⁵⁶/₈₄+⁴⁰/₂₇ ²⁸/₈₄+⁸⁰/₂₇ ²⁸/₈₄+⁴⁰/₅₄ ²⁸/₈₄+⁴⁰/₈₁

Add Fractions Calculator