Subtract 28/18 from 54/56
1st number: 54/56, 2nd number: 1 10/18
54/56 - 28/18 is -149/252.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 18 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 56 × 9 = 504,
54/56 = 54 × 9/56 × 9 = 486/504 - Likewise, for the 2nd fraction, since 18 × 28 = 504,
28/18 = 28 × 28/18 × 28 = 784/504 - Subtract the two like fractions:
486/504 - 784/504 = 486 - 784/504 = -298/504 - After reducing the fraction, the answer is -149/252
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/56-56/18 54/56-28/36 54/56-84/18 54/56-28/54 54/56-28/90