Subtract 1/32 from 24/21, Solve 1 3/21

Subtract 1/32 from 24/21

1^st number: 1 3/21, 2^nd number: 1/32

24/21 - 1/32 is 249/224.

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,
24/21 = 24 × 32/21 × 32 = 768/672
Likewise, for the 2nd fraction, since 32 × 21 = 672,
1/32 = 1 × 21/32 × 21 = 21/672
Subtract the two like fractions:
768/672 - 21/672 = 768 - 21/672 = 747/672
After reducing the fraction, the answer is 249/224
In mixed form: 125/224

MathStep (Works offline)

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