Subtract 81/56 from 1/8
1st number: 1/8, 2nd number: 1 25/56
1/8 - 81/56 is -37/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 56 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 8 × 7 = 56,
1/8 = 1 × 7/8 × 7 = 7/56 - Likewise, for the 2nd fraction, since 56 × 1 = 56,
81/56 = 81 × 1/56 × 1 = 81/56 - Subtract the two like fractions:
7/56 - 81/56 = 7 - 81/56 = -74/56 - After reducing the fraction, the answer is -37/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/8-81/56 1/16-81/56 3/8-81/56 1/24-81/56 5/8-81/56 1/40-81/56 7/8-81/56 1/56-81/56