Answers

Subtract 70/63 from 25/48

1^st number: 25/48, 2^nd number: 1 7/63

25/48 - 70/63 is -85/144.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 48 and 63 is 1008
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1008
2. For the 1st fraction, since 48 × 21 = 1008,
   25/48 = 25 × 21/48 × 21 = 525/1008
3. Likewise, for the 2nd fraction, since 63 × 16 = 1008,
   70/63 = 70 × 16/63 × 16 = 1120/1008
4. Subtract the two like fractions:
   525/1008 - 1120/1008 = 525 - 1120/1008 = -595/1008
5. After reducing the fraction, the answer is -85/144

MathStep (Works offline)

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

Related: ⁵⁰/₄₈-⁷⁰/₆₃ ²⁵/₉₆-⁷⁰/₆₃ ⁷⁵/₄₈-⁷⁰/₆₃

Subtract Fractions Calculator