Subtract 7/56 from 15/7
1st number: 2 1/7, 2nd number: 7/56
15/7 - 7/56 is 113/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 56 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 7 × 8 = 56,
15/7 = 15 × 8/7 × 8 = 120/56 - Likewise, for the 2nd fraction, since 56 × 1 = 56,
7/56 = 7 × 1/56 × 1 = 7/56 - Subtract the two like fractions:
120/56 - 7/56 = 120 - 7/56 = 113/56 - In mixed form: 21/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/7-7/56 15/7-14/56 15/14-7/56 45/7-7/56 15/7-21/56 15/21-7/56 75/7-7/56 15/7-35/56 15/35-7/56 15/7-49/56 15/49-7/56