Subtract 56/7 from 15/36
1st number: 15/36, 2nd number: 8 0/7
15/36 - 56/7 is -91/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 7 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 36 × 7 = 252,
15/36 = 15 × 7/36 × 7 = 105/252 - Likewise, for the 2nd fraction, since 7 × 36 = 252,
56/7 = 56 × 36/7 × 36 = 2016/252 - Subtract the two like fractions:
105/252 - 2016/252 = 105 - 2016/252 = -1911/252 - After reducing the fraction, the answer is -91/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/36-56/7 15/72-56/7 15/36-56/14 45/36-56/7 15/36-56/21 75/36-56/7 15/36-56/35 15/36-56/49