Subtract 9/7 from 56/16, Solve 3 8/16

Subtract 9/7 from 56/16

1^st number: 3 8/16, 2^nd number: 1 2/7

56/16 - 9/7 is 31/14.

Find the least common denominator or LCM of the two denominators:
LCM of 16 and 7 is 112

Next, find the equivalent fraction of both fractional numbers with denominator 112
For the 1st fraction, since 16 × 7 = 112,
56/16 = 56 × 7/16 × 7 = 392/112
Likewise, for the 2nd fraction, since 7 × 16 = 112,
9/7 = 9 × 16/7 × 16 = 144/112
Subtract the two like fractions:
392/112 - 144/112 = 392 - 144/112 = 248/112
After reducing the fraction, the answer is 31/14
In mixed form: 23/14

MathStep (Works offline)

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