Subtract 6/28 from 21/24
21/24 - 6/28 is 37/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 28 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 24 × 7 = 168,
21/24 = 21 × 7/24 × 7 = 147/168 - Likewise, for the 2nd fraction, since 28 × 6 = 168,
6/28 = 6 × 6/28 × 6 = 36/168 - Subtract the two like fractions:
147/168 - 36/168 = 147 - 36/168 = 111/168 - After reducing the fraction, the answer is 37/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/24-6/28 21/24-12/28 21/48-6/28 21/24-6/56 63/24-6/28 21/24-18/28 21/72-6/28 21/24-6/84 21/24-30/28 21/24-42/28