Answers

Subtract 70/56 from 56/72

1^st number: 56/72, 2^nd number: 1 14/56

56/72 - 70/56 is -17/36.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 56 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 72 × 7 = 504,
   56/72 = 56 × 7/72 × 7 = 392/504
3. Likewise, for the 2nd fraction, since 56 × 9 = 504,
   70/56 = 70 × 9/56 × 9 = 630/504
4. Subtract the two like fractions:
   392/504 - 630/504 = 392 - 630/504 = -238/504
5. After reducing the fraction, the answer is -17/36

MathStep (Works offline)

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

Related:

Subtract Fractions Calculator