Subtract 9/56 from 15/7
1st number: 2 1/7, 2nd number: 9/56
15/7 - 9/56 is 111/56.
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,
9/56 = 9 × 1/56 × 1 = 9/56 - Subtract the two like fractions:
120/56 - 9/56 = 120 - 9/56 = 111/56 - In mixed form: 155/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/7-9/56 15/7-18/56 15/14-9/56 45/7-9/56 15/7-27/56 15/21-9/56 75/7-9/56 15/7-45/56 15/35-9/56 15/7-63/56 15/49-9/56