Subtract 42/56 from 30/16, Solve 1 14/16

Subtract 42/56 from 30/16

1^st number: 1 14/16, 2^nd number: 42/56

30/16 - 42/56 is 9/8.

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,
30/16 = 30 × 7/16 × 7 = 210/112
Likewise, for the 2nd fraction, since 56 × 2 = 112,
42/56 = 42 × 2/56 × 2 = 84/112
Subtract the two like fractions:
210/112 - 84/112 = 210 - 84/112 = 126/112
After reducing the fraction, the answer is 9/8
In mixed form: 11/8

MathStep (Works offline)

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