Subtract 14/32 from 25/21, Solve 1 4/21

Subtract 14/32 from 25/21

1^st number: 1 4/21, 2^nd number: 14/32

25/21 - 14/32 is 253/336.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 32 is 672

Next, find the equivalent fraction of both fractional numbers with denominator 672
For the 1st fraction, since 21 × 32 = 672,
25/21 = 25 × 32/21 × 32 = 800/672
Likewise, for the 2nd fraction, since 32 × 21 = 672,
14/32 = 14 × 21/32 × 21 = 294/672
Subtract the two like fractions:
800/672 - 294/672 = 800 - 294/672 = 506/672
After reducing the fraction, the answer is 253/336

MathStep (Works offline)

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