Subtract 2/56 from 21/54
21/54 - 2/56 is 89/252.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 56 is 1512
Next, find the equivalent fraction of both fractional numbers with denominator 1512 - For the 1st fraction, since 54 × 28 = 1512,
21/54 = 21 × 28/54 × 28 = 588/1512 - Likewise, for the 2nd fraction, since 56 × 27 = 1512,
2/56 = 2 × 27/56 × 27 = 54/1512 - Subtract the two like fractions:
588/1512 - 54/1512 = 588 - 54/1512 = 534/1512 - After reducing the fraction, the answer is 89/252
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/54-2/56 21/54-4/56 63/54-2/56 21/54-6/56 21/54-10/56 21/54-14/56