Answers

Add 20/84 and 36/27

1^st number: 20/84, 2^nd number: 1 9/27

20/84 + 36/27 is 11/7.

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,
   20/84 = 20 × 9/84 × 9 = 180/756
3. Likewise, for the 2nd fraction, since 27 × 28 = 756,
   36/27 = 36 × 28/27 × 28 = 1008/756
4. Add the two like fractions:
   180/756 + 1008/756 = 180 + 1008/756 = 1188/756
5. 1188/756 simplified gives 11/7
6. So, 20/84 + 36/27 = 11/7
   In mixed form: 14/7

MathStep (Works offline)

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

Related: ⁴⁰/₈₄+³⁶/₂₇ ²⁰/₈₄+⁷²/₂₇ ²⁰/₈₄+³⁶/₅₄ ⁶⁰/₈₄+³⁶/₂₇ ²⁰/₈₄+³⁶/₈₁

Add Fractions Calculator