Answers

Subtract 54/56 from 30/20

1^st number: 1 10/20, 2^nd number: 54/56

30/20 - 54/56 is 15/28.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 56 is 280
   
   Next, find the equivalent fraction of both fractional numbers with denominator 280
2. For the 1st fraction, since 20 × 14 = 280,
   30/20 = 30 × 14/20 × 14 = 420/280
3. Likewise, for the 2nd fraction, since 56 × 5 = 280,
   54/56 = 54 × 5/56 × 5 = 270/280
4. Subtract the two like fractions:
   420/280 - 270/280 = 420 - 270/280 = 150/280
5. After reducing the fraction, the answer is 15/28

MathStep (Works offline)

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

Related: ⁶⁰/₂₀-⁵⁴/₅₆ ³⁰/₄₀-⁵⁴/₅₆ ⁹⁰/₂₀-⁵⁴/₅₆ ³⁰/₆₀-⁵⁴/₅₆

Subtract Fractions Calculator