Answers

Subtract 20/80 from 75/50

1^st number: 1 25/50, 2^nd number: 20/80

75/50 - 20/80 is 5/4.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 50 and 80 is 400
   
   Next, find the equivalent fraction of both fractional numbers with denominator 400
2. For the 1st fraction, since 50 × 8 = 400,
   75/50 = 75 × 8/50 × 8 = 600/400
3. Likewise, for the 2nd fraction, since 80 × 5 = 400,
   20/80 = 20 × 5/80 × 5 = 100/400
4. Subtract the two like fractions:
   600/400 - 100/400 = 600 - 100/400 = 500/400
5. After reducing the fraction, the answer is 5/4
6. In mixed form: 11/4

MathStep (Works offline)

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

Related: ⁷⁵/₅₀-⁴⁰/₈₀ ⁷⁵/₅₀-⁶⁰/₈₀

Subtract Fractions Calculator