Subtract 10/7 from 81/56
1st number: 1 25/56, 2nd number: 1 3/7
81/56 - 10/7 is 1/56.
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,
81/56 = 81 × 1/56 × 1 = 81/56 - Likewise, for the 2nd fraction, since 7 × 8 = 56,
10/7 = 10 × 8/7 × 8 = 80/56 - Subtract the two like fractions:
81/56 - 80/56 = 81 - 80/56 = 1/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/56-20/7 81/56-10/14 81/56-30/7 81/56-10/21 81/56-50/7 81/56-10/35 81/56-70/7 81/56-10/49