Subtract 15/56 from 42/16, Solve 2 10/16

Subtract 15/56 from 42/16

1^st number: 2 10/16, 2^nd number: 15/56

42/16 - 15/56 is 33/14.

Find the least common denominator or LCM of the two denominators:
LCM of 16 and 56 is 112

Next, find the equivalent fraction of both fractional numbers with denominator 112
For the 1st fraction, since 16 × 7 = 112,
42/16 = 42 × 7/16 × 7 = 294/112
Likewise, for the 2nd fraction, since 56 × 2 = 112,
15/56 = 15 × 2/56 × 2 = 30/112
Subtract the two like fractions:
294/112 - 30/112 = 294 - 30/112 = 264/112
After reducing the fraction, the answer is 33/14
In mixed form: 25/14

MathStep (Works offline)

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