Answers

Add 27/42 and 2/21

27/42 + 2/21 is 31/42.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 21 is 42
   
   Next, find the equivalent fraction of both fractional numbers with denominator 42
2. For the 1st fraction, since 42 × 1 = 42,
   27/42 = 27 × 1/42 × 1 = 27/42
3. Likewise, for the 2nd fraction, since 21 × 2 = 42,
   2/21 = 2 × 2/21 × 2 = 4/42
4. Add the two like fractions:
   27/42 + 4/42 = 27 + 4/42 = 31/42
5. So, 27/42 + 2/21 = 31/42

MathStep (Works offline)

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

Related: ⁵⁴/₄₂+²/₂₁ ²⁷/₄₂+⁴/₂₁ ²⁷/₈₄+²/₂₁ ²⁷/₄₂+²/₄₂ ⁸¹/₄₂+²/₂₁ ²⁷/₄₂+⁶/₂₁ ²⁷/₄₂+²/₆₃ ²⁷/₄₂+¹⁰/₂₁ ²⁷/₄₂+¹⁴/₂₁

Add Fractions Calculator