Answers

Add 14/81 and 28/42

14/81 + 28/42 is 68/81.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 81 and 42 is 1134
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1134
2. For the 1st fraction, since 81 × 14 = 1134,
   14/81 = 14 × 14/81 × 14 = 196/1134
3. Likewise, for the 2nd fraction, since 42 × 27 = 1134,
   28/42 = 28 × 27/42 × 27 = 756/1134
4. Add the two like fractions:
   196/1134 + 756/1134 = 196 + 756/1134 = 952/1134
5. 952/1134 simplified gives 68/81
6. So, 14/81 + 28/42 = 68/81

MathStep (Works offline)

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

Related: ²⁸/₈₁+²⁸/₄₂ ¹⁴/₈₁+⁵⁶/₄₂ ¹⁴/₈₁+²⁸/₈₄ ⁴²/₈₁+²⁸/₄₂ ¹⁴/₈₁+⁸⁴/₄₂ ⁷⁰/₈₁+²⁸/₄₂ ⁹⁸/₈₁+²⁸/₄₂

Add Fractions Calculator