Subtract 7/20 from 40/35
1st number: 1 5/35, 2nd number: 7/20
40/35 - 7/20 is 111/140.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 35 × 4 = 140,
40/35 = 40 × 4/35 × 4 = 160/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
7/20 = 7 × 7/20 × 7 = 49/140 - Subtract the two like fractions:
160/140 - 49/140 = 160 - 49/140 = 111/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/35-7/20 40/35-14/20 40/70-7/20 40/35-7/40 40/35-21/20 40/35-7/60 40/35-35/20 40/35-49/20