Subtract 81/12 from 2/56
1st number: 2/56, 2nd number: 6 9/12
2/56 - 81/12 is -47/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 12 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 56 × 3 = 168,
2/56 = 2 × 3/56 × 3 = 6/168 - Likewise, for the 2nd fraction, since 12 × 14 = 168,
81/12 = 81 × 14/12 × 14 = 1134/168 - Subtract the two like fractions:
6/168 - 1134/168 = 6 - 1134/168 = -1128/168 - After reducing the fraction, the answer is -47/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/56-81/12 2/56-81/24 6/56-81/12 2/56-81/36 10/56-81/12 2/56-81/60 14/56-81/12 2/56-81/84