Answers

Subtract 6/9 from 2/7

2/7 - 6/9 is -8/21.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 7 and 9 is 63
2. For the 1st fraction, since 7 × 9 = 63,
   2/7 = 2 × 9/7 × 9 = 18/63
3. Likewise, for the 2nd fraction, since 9 × 7 = 63,
   6/9 = 6 × 7/9 × 7 = 42/63
4. Subtract the two fractions:
   18/63 - 42/63 = 18 - 42/63 = -24/63
5. After reducing the fraction, the answer is -8/21

MathStep (Works offline)

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

Related: ⁴/₇-⁶/₉ ²/₇-¹²/₉ ²/₁₄-⁶/₉ ²/₇-⁶/₁₈ ⁶/₇-⁶/₉ ²/₇-¹⁸/₉ ²/₂₁-⁶/₉ ²/₇-⁶/₂₇ ¹⁰/₇-⁶/₉ ²/₇-³⁰/₉ ²/₃₅-⁶/₉ ²/₇-⁶/₄₅ ¹⁴/₇-⁶/₉ ²/₇-⁴²/₉ ²/₄₉-⁶/₉ ²/₇-⁶/₆₃

Subtract Fractions Calculator