Subtract 45/28 from 56/54
1st number: 1 2/54, 2nd number: 1 17/28
56/54 - 45/28 is -431/756.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 28 is 756
Next, find the equivalent fraction of both fractional numbers with denominator 756 - For the 1st fraction, since 54 × 14 = 756,
56/54 = 56 × 14/54 × 14 = 784/756 - Likewise, for the 2nd fraction, since 28 × 27 = 756,
45/28 = 45 × 27/28 × 27 = 1215/756 - Subtract the two like fractions:
784/756 - 1215/756 = 784 - 1215/756 = -431/756
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/54-90/28 56/54-45/56 56/54-45/84