Answers

Subtract 30/8 from 56/72

1^st number: 56/72, 2^nd number: 3 6/8

56/72 - 30/8 is -107/36.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 8 is 72
   
   Next, find the equivalent fraction of both fractional numbers with denominator 72
2. For the 1st fraction, since 72 × 1 = 72,
   56/72 = 56 × 1/72 × 1 = 56/72
3. Likewise, for the 2nd fraction, since 8 × 9 = 72,
   30/8 = 30 × 9/8 × 9 = 270/72
4. Subtract the two like fractions:
   56/72 - 270/72 = 56 - 270/72 = -214/72
5. After reducing the fraction, the answer is -107/36

MathStep (Works offline)

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

Related: ⁵⁶/₇₂-⁶⁰/₈ ⁵⁶/₇₂-³⁰/₁₆ ⁵⁶/₇₂-⁹⁰/₈ ⁵⁶/₇₂-³⁰/₂₄ ⁵⁶/₇₂-³⁰/₄₀ ⁵⁶/₇₂-³⁰/₅₆

Subtract Fractions Calculator