Answers

Subtract 75/50 from 20/56

1^st number: 20/56, 2^nd number: 1 25/50

20/56 - 75/50 is -8/7.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 56 and 50 is 1400
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1400
2. For the 1st fraction, since 56 × 25 = 1400,
   20/56 = 20 × 25/56 × 25 = 500/1400
3. Likewise, for the 2nd fraction, since 50 × 28 = 1400,
   75/50 = 75 × 28/50 × 28 = 2100/1400
4. Subtract the two like fractions:
   500/1400 - 2100/1400 = 500 - 2100/1400 = -1600/1400
5. After reducing the fraction, the answer is -8/7

MathStep (Works offline)

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

Related: ⁴⁰/₅₆-⁷⁵/₅₀ ⁶⁰/₅₆-⁷⁵/₅₀

Subtract Fractions Calculator