Subtract 8/7 from 15/56
1st number: 15/56, 2nd number: 1 1/7
15/56 - 8/7 is -7/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 7 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 56 × 1 = 56,
15/56 = 15 × 1/56 × 1 = 15/56 - Likewise, for the 2nd fraction, since 7 × 8 = 56,
8/7 = 8 × 8/7 × 8 = 64/56 - Subtract the two like fractions:
15/56 - 64/56 = 15 - 64/56 = -49/56 - After reducing the fraction, the answer is -7/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/56-8/7 15/56-16/7 15/56-8/14 45/56-8/7 15/56-24/7 15/56-8/21 75/56-8/7 15/56-40/7 15/56-8/35 15/56-56/7 15/56-8/49