Answers

Subtract 63/25 from 20/80

1^st number: 20/80, 2^nd number: 2 13/25

20/80 - 63/25 is -227/100.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 80 and 25 is 400
   
   Next, find the equivalent fraction of both fractional numbers with denominator 400
2. For the 1st fraction, since 80 × 5 = 400,
   20/80 = 20 × 5/80 × 5 = 100/400
3. Likewise, for the 2nd fraction, since 25 × 16 = 400,
   63/25 = 63 × 16/25 × 16 = 1008/400
4. Subtract the two like fractions:
   100/400 - 1008/400 = 100 - 1008/400 = -908/400
5. After reducing the fraction, the answer is -227/100

MathStep (Works offline)

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

Related: ⁴⁰/₈₀-⁶³/₂₅ ²⁰/₈₀-⁶³/₅₀ ⁶⁰/₈₀-⁶³/₂₅ ²⁰/₈₀-⁶³/₇₅

Subtract Fractions Calculator