Answers

Subtract 90/70 from 72/56

1^st number: 1 16/56, 2^nd number: 1 20/70

72/56 - 90/70 is 0/1.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 56 and 70 is 280
   
   Next, find the equivalent fraction of both fractional numbers with denominator 280
2. For the 1st fraction, since 56 × 5 = 280,
   72/56 = 72 × 5/56 × 5 = 360/280
3. Likewise, for the 2nd fraction, since 70 × 4 = 280,
   90/70 = 90 × 4/70 × 4 = 360/280
4. Subtract the two like fractions:
   360/280 - 360/280 = 360 - 360/280 = 0/280
5. The answer is 0

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