Subtract 21/24 from 24/56
24/56 - 21/24 is -25/56.
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,
24/56 = 24 × 3/56 × 3 = 72/168 - Likewise, for the 2nd fraction, since 24 × 7 = 168,
21/24 = 21 × 7/24 × 7 = 147/168 - Subtract the two like fractions:
72/168 - 147/168 = 72 - 147/168 = -75/168 - After reducing the fraction, the answer is -25/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/56-21/24 24/56-42/24 24/56-21/48 72/56-21/24 24/56-63/24 24/56-21/72