Answers

Add 27/70 and 15/84

27/70 + 15/84 is 79/140.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 84 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 70 × 6 = 420,
   27/70 = 27 × 6/70 × 6 = 162/420
3. Likewise, for the 2nd fraction, since 84 × 5 = 420,
   15/84 = 15 × 5/84 × 5 = 75/420
4. Add the two like fractions:
   162/420 + 75/420 = 162 + 75/420 = 237/420
5. 237/420 simplified gives 79/140
6. So, 27/70 + 15/84 = 79/140

MathStep (Works offline)

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

Related: ⁵⁴/₇₀+¹⁵/₈₄ ²⁷/₇₀+³⁰/₈₄ ⁸¹/₇₀+¹⁵/₈₄ ²⁷/₇₀+⁴⁵/₈₄ ²⁷/₇₀+⁷⁵/₈₄

Add Fractions Calculator