Subtract 81/3 from 5/56, Solve 5/56

Subtract 81/3 from 5/56

1^st number: 5/56, 2^nd number: 27 0/3

5/56 - 81/3 is -1507/56.

Find the least common denominator or LCM of the two denominators:
LCM of 56 and 3 is 168

Next, find the equivalent fraction of both fractional numbers with denominator 168
For the 1st fraction, since 56 × 3 = 168,
5/56 = 5 × 3/56 × 3 = 15/168
Likewise, for the 2nd fraction, since 3 × 56 = 168,
81/3 = 81 × 56/3 × 56 = 4536/168
Subtract the two like fractions:
15/168 - 4536/168 = 15 - 4536/168 = -4521/168
After reducing the fraction, the answer is -1507/56

MathStep (Works offline)

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