Answers

Add 6/14 and 8/21

6/14 + 8/21 is 17/21.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 14 and 21 is 42
   
   Next, find the equivalent fraction of both fractional numbers with denominator 42
2. For the 1st fraction, since 14 × 3 = 42,
   6/14 = 6 × 3/14 × 3 = 18/42
3. Likewise, for the 2nd fraction, since 21 × 2 = 42,
   8/21 = 8 × 2/21 × 2 = 16/42
4. Add the two like fractions:
   18/42 + 16/42 = 18 + 16/42 = 34/42
5. 34/42 simplified gives 17/21
6. So, 6/14 + 8/21 = 17/21

MathStep (Works offline)

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

Related: ¹²/₁₄+⁸/₂₁ ⁶/₁₄+¹⁶/₂₁ ⁶/₂₈+⁸/₂₁ ⁶/₁₄+⁸/₄₂ ¹⁸/₁₄+⁸/₂₁ ⁶/₁₄+²⁴/₂₁ ⁶/₄₂+⁸/₂₁ ⁶/₁₄+⁸/₆₃ ³⁰/₁₄+⁸/₂₁ ⁶/₁₄+⁴⁰/₂₁ ⁶/₇₀+⁸/₂₁ ⁴²/₁₄+⁸/₂₁ ⁶/₁₄+⁵⁶/₂₁ ⁶/₉₈+⁸/₂₁

Add Fractions Calculator