Subtract 40/18 from 56/7
1st number: 8 0/7, 2nd number: 2 4/18
56/7 - 40/18 is 52/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 18 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 7 × 18 = 126,
56/7 = 56 × 18/7 × 18 = 1008/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
40/18 = 40 × 7/18 × 7 = 280/126 - Subtract the two like fractions:
1008/126 - 280/126 = 1008 - 280/126 = 728/126 - After reducing the fraction, the answer is 52/9
- In mixed form: 57/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/7-80/18 56/14-40/18 56/7-40/36 56/21-40/18 56/7-40/54 56/35-40/18 56/7-40/90 56/49-40/18