Answers

Subtract 70/56 from 18/75

1^st number: 18/75, 2^nd number: 1 14/56

18/75 - 70/56 is -101/100.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 75 and 56 is 4200
   
   Next, find the equivalent fraction of both fractional numbers with denominator 4200
2. For the 1st fraction, since 75 × 56 = 4200,
   18/75 = 18 × 56/75 × 56 = 1008/4200
3. Likewise, for the 2nd fraction, since 56 × 75 = 4200,
   70/56 = 70 × 75/56 × 75 = 5250/4200
4. Subtract the two like fractions:
   1008/4200 - 5250/4200 = 1008 - 5250/4200 = -4242/4200
5. After reducing the fraction, the answer is -101/100

MathStep (Works offline)

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

Related: ³⁶/₇₅-⁷⁰/₅₆ ⁵⁴/₇₅-⁷⁰/₅₆ ⁹⁰/₇₅-⁷⁰/₅₆

Subtract Fractions Calculator