Subtract 16/20 from 96/21, Solve 4 12/21

Subtract 16/20 from 96/21

1^st number: 4 12/21, 2^nd number: 16/20

96/21 - 16/20 is 132/35.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 20 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 21 × 20 = 420,
96/21 = 96 × 20/21 × 20 = 1920/420
Likewise, for the 2nd fraction, since 20 × 21 = 420,
16/20 = 16 × 21/20 × 21 = 336/420
Subtract the two like fractions:
1920/420 - 336/420 = 1920 - 336/420 = 1584/420
After reducing the fraction, the answer is 132/35
In mixed form: 327/35

MathStep (Works offline)

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