Subtract 1/12 from 56/28, Solve 2 0/28

Subtract 1/12 from 56/28

1^st number: 2 0/28, 2^nd number: 1/12

56/28 - 1/12 is 23/12.

Find the least common denominator or LCM of the two denominators:
LCM of 28 and 12 is 84

Next, find the equivalent fraction of both fractional numbers with denominator 84
For the 1st fraction, since 28 × 3 = 84,
56/28 = 56 × 3/28 × 3 = 168/84
Likewise, for the 2nd fraction, since 12 × 7 = 84,
1/12 = 1 × 7/12 × 7 = 7/84
Subtract the two like fractions:
168/84 - 7/84 = 168 - 7/84 = 161/84
After reducing the fraction, the answer is 23/12
In mixed form: 111/12

MathStep (Works offline)

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