Subtract 54/4 from 21/56
1st number: 21/56, 2nd number: 13 2/4
21/56 - 54/4 is -105/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 4 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 56 × 1 = 56,
21/56 = 21 × 1/56 × 1 = 21/56 - Likewise, for the 2nd fraction, since 4 × 14 = 56,
54/4 = 54 × 14/4 × 14 = 756/56 - Subtract the two like fractions:
21/56 - 756/56 = 21 - 756/56 = -735/56 - After reducing the fraction, the answer is -105/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/56-54/4 21/56-54/8 63/56-54/4 21/56-54/12 21/56-54/20 21/56-54/28