Subtract 10/24 from 21/56
21/56 - 10/24 is -1/24.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 24 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 56 × 3 = 168,
21/56 = 21 × 3/56 × 3 = 63/168 - Likewise, for the 2nd fraction, since 24 × 7 = 168,
10/24 = 10 × 7/24 × 7 = 70/168 - Subtract the two like fractions:
63/168 - 70/168 = 63 - 70/168 = -7/168 - After reducing the fraction, the answer is -1/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/56-10/24 21/56-20/24 21/56-10/48 63/56-10/24 21/56-30/24 21/56-10/72 21/56-50/24 21/56-70/24