Subtract 35/18 from 20/7
1st number: 2 6/7, 2nd number: 1 17/18
20/7 - 35/18 is 115/126.
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,
20/7 = 20 × 18/7 × 18 = 360/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
35/18 = 35 × 7/18 × 7 = 245/126 - Subtract the two like fractions:
360/126 - 245/126 = 360 - 245/126 = 115/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/7-35/18 20/7-70/18 20/14-35/18 20/7-35/36 60/7-35/18 20/21-35/18 20/7-35/54 20/35-35/18 20/7-35/90 20/49-35/18