Subtract 21/32 from 56/42, Solve 1 14/42

Subtract 21/32 from 56/42

1^st number: 1 14/42, 2^nd number: 21/32

56/42 - 21/32 is 65/96.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 32 is 672

Next, find the equivalent fraction of both fractional numbers with denominator 672
For the 1st fraction, since 42 × 16 = 672,
56/42 = 56 × 16/42 × 16 = 896/672
Likewise, for the 2nd fraction, since 32 × 21 = 672,
21/32 = 21 × 21/32 × 21 = 441/672
Subtract the two like fractions:
896/672 - 441/672 = 896 - 441/672 = 455/672
After reducing the fraction, the answer is 65/96

MathStep (Works offline)

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