Answers

Subtract 70/4 from 56/21

1^st number: 2 14/21, 2^nd number: 17 2/4

56/21 - 70/4 is -89/6.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 4 is 84
   
   Next, find the equivalent fraction of both fractional numbers with denominator 84
2. For the 1st fraction, since 21 × 4 = 84,
   56/21 = 56 × 4/21 × 4 = 224/84
3. Likewise, for the 2nd fraction, since 4 × 21 = 84,
   70/4 = 70 × 21/4 × 21 = 1470/84
4. Subtract the two like fractions:
   224/84 - 1470/84 = 224 - 1470/84 = -1246/84
5. After reducing the fraction, the answer is -89/6

MathStep (Works offline)

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

Related: ⁵⁶/₄₂-⁷⁰/₄ ⁵⁶/₂₁-⁷⁰/₈ ⁵⁶/₆₃-⁷⁰/₄ ⁵⁶/₂₁-⁷⁰/₁₂ ⁵⁶/₂₁-⁷⁰/₂₀ ⁵⁶/₂₁-⁷⁰/₂₈

Subtract Fractions Calculator