Subtract 28/32 from 56/36, Solve 1 20/36

Subtract 28/32 from 56/36

1^st number: 1 20/36, 2^nd number: 28/32

56/36 - 28/32 is 49/72.

Find the least common denominator or LCM of the two denominators:
LCM of 36 and 32 is 288

Next, find the equivalent fraction of both fractional numbers with denominator 288
For the 1st fraction, since 36 × 8 = 288,
56/36 = 56 × 8/36 × 8 = 448/288
Likewise, for the 2nd fraction, since 32 × 9 = 288,
28/32 = 28 × 9/32 × 9 = 252/288
Subtract the two like fractions:
448/288 - 252/288 = 448 - 252/288 = 196/288
After reducing the fraction, the answer is 49/72

MathStep (Works offline)

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