Subtract 10/50 from 21/24, Solve 21/24

Subtract 10/50 from 21/24

21/24 - 10/50 is 27/40.

Find the least common denominator or LCM of the two denominators:
LCM of 24 and 50 is 600

Next, find the equivalent fraction of both fractional numbers with denominator 600
For the 1st fraction, since 24 × 25 = 600,
21/24 = 21 × 25/24 × 25 = 525/600
Likewise, for the 2nd fraction, since 50 × 12 = 600,
10/50 = 10 × 12/50 × 12 = 120/600
Subtract the two like fractions:
525/600 - 120/600 = 525 - 120/600 = 405/600
After reducing the fraction, the answer is 27/40

MathStep (Works offline)

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