Answers

Subtract 8/7 from 56/81

1^st number: 56/81, 2^nd number: 1 1/7

56/81 - 8/7 is -256/567.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 81 and 7 is 567
   
   Next, find the equivalent fraction of both fractional numbers with denominator 567
2. For the 1st fraction, since 81 × 7 = 567,
   56/81 = 56 × 7/81 × 7 = 392/567
3. Likewise, for the 2nd fraction, since 7 × 81 = 567,
   8/7 = 8 × 81/7 × 81 = 648/567
4. Subtract the two like fractions:
   392/567 - 648/567 = 392 - 648/567 = -256/567

MathStep (Works offline)

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

Related: ⁵⁶/₈₁-¹⁶/₇ ⁵⁶/₈₁-⁸/₁₄ ⁵⁶/₈₁-²⁴/₇ ⁵⁶/₈₁-⁸/₂₁ ⁵⁶/₈₁-⁴⁰/₇ ⁵⁶/₈₁-⁸/₃₅ ⁵⁶/₈₁-⁵⁶/₇ ⁵⁶/₈₁-⁸/₄₉

Subtract Fractions Calculator