Subtract 35/21 from 80/32, Solve 2 16/32

Subtract 35/21 from 80/32

1^st number: 2 16/32, 2^nd number: 1 14/21

80/32 - 35/21 is 5/6.

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

Next, find the equivalent fraction of both fractional numbers with denominator 672
For the 1st fraction, since 32 × 21 = 672,
80/32 = 80 × 21/32 × 21 = 1680/672
Likewise, for the 2nd fraction, since 21 × 32 = 672,
35/21 = 35 × 32/21 × 32 = 1120/672
Subtract the two like fractions:
1680/672 - 1120/672 = 1680 - 1120/672 = 560/672
After reducing the fraction, the answer is 5/6

MathStep (Works offline)

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