Subtract 56/12 from 15/25, Solve 15/25

Subtract 56/12 from 15/25

1^st number: 15/25, 2^nd number: 4 8/12

15/25 - 56/12 is -61/15.

Find the least common denominator or LCM of the two denominators:
LCM of 25 and 12 is 300

Next, find the equivalent fraction of both fractional numbers with denominator 300
For the 1st fraction, since 25 × 12 = 300,
15/25 = 15 × 12/25 × 12 = 180/300
Likewise, for the 2nd fraction, since 12 × 25 = 300,
56/12 = 56 × 25/12 × 25 = 1400/300
Subtract the two like fractions:
180/300 - 1400/300 = 180 - 1400/300 = -1220/300
After reducing the fraction, the answer is -61/15

MathStep (Works offline)

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