Subtract 56/14 from 21/28
1st number: 21/28, 2nd number: 4 0/14
21/28 - 56/14 is -13/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 14 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 28 × 1 = 28,
21/28 = 21 × 1/28 × 1 = 21/28 - Likewise, for the 2nd fraction, since 14 × 2 = 28,
56/14 = 56 × 2/14 × 2 = 112/28 - Subtract the two like fractions:
21/28 - 112/28 = 21 - 112/28 = -91/28 - After reducing the fraction, the answer is -13/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/28-56/14 21/56-56/14 21/28-56/28 63/28-56/14 21/84-56/14 21/28-56/42 21/28-56/70 21/28-56/98