Subtract 28/25 from 15/24, Solve 15/24

Subtract 28/25 from 15/24

1^st number: 15/24, 2^nd number: 1 3/25

15/24 - 28/25 is -99/200.

Find the least common denominator or LCM of the two denominators:
LCM of 24 and 25 is 600

Next, find the equivalent fraction of both fractional numbers with denominator 600
For the 1st fraction, since 24 × 25 = 600,
15/24 = 15 × 25/24 × 25 = 375/600
Likewise, for the 2nd fraction, since 25 × 24 = 600,
28/25 = 28 × 24/25 × 24 = 672/600
Subtract the two like fractions:
375/600 - 672/600 = 375 - 672/600 = -297/600
After reducing the fraction, the answer is -99/200

MathStep (Works offline)

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