Subtract 9/56 from 18/7
1st number: 2 4/7, 2nd number: 9/56
18/7 - 9/56 is 135/56.
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,
18/7 = 18 × 8/7 × 8 = 144/56 - Likewise, for the 2nd fraction, since 56 × 1 = 56,
9/56 = 9 × 1/56 × 1 = 9/56 - Subtract the two like fractions:
144/56 - 9/56 = 144 - 9/56 = 135/56 - In mixed form: 223/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/7-9/56 18/7-18/56 18/14-9/56 54/7-9/56 18/7-27/56 18/21-9/56 90/7-9/56 18/7-45/56 18/35-9/56 18/7-63/56 18/49-9/56