Subtract 30/28 from 72/14, Solve 5 2/14

Subtract 30/28 from 72/14

1^st number: 5 2/14, 2^nd number: 1 2/28

72/14 - 30/28 is 57/14.

Find the least common denominator or LCM of the two denominators:
LCM of 14 and 28 is 28

Next, find the equivalent fraction of both fractional numbers with denominator 28
For the 1st fraction, since 14 × 2 = 28,
72/14 = 72 × 2/14 × 2 = 144/28
Likewise, for the 2nd fraction, since 28 × 1 = 28,
30/28 = 30 × 1/28 × 1 = 30/28
Subtract the two like fractions:
144/28 - 30/28 = 144 - 30/28 = 114/28
After reducing the fraction, the answer is 57/14
In mixed form: 41/14

MathStep (Works offline)

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