Subtract 54/56 from 21/14
1st number: 1 7/14, 2nd number: 54/56
21/14 - 54/56 is 15/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 56 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 14 × 4 = 56,
21/14 = 21 × 4/14 × 4 = 84/56 - Likewise, for the 2nd fraction, since 56 × 1 = 56,
54/56 = 54 × 1/56 × 1 = 54/56 - Subtract the two like fractions:
84/56 - 54/56 = 84 - 54/56 = 30/56 - After reducing the fraction, the answer is 15/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/14-54/56 21/28-54/56 63/14-54/56 21/42-54/56 21/70-54/56 21/98-54/56