Subtract 40/35 from 35/20
1st number: 1 15/20, 2nd number: 1 5/35
35/20 - 40/35 is 17/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 35 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,
35/20 = 35 × 7/20 × 7 = 245/140 - Likewise, for the 2nd fraction, since 35 × 4 = 140,
40/35 = 40 × 4/35 × 4 = 160/140 - Subtract the two like fractions:
245/140 - 160/140 = 245 - 160/140 = 85/140 - After reducing the fraction, the answer is 17/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/20-40/35 35/20-80/35 35/40-40/35 35/20-40/70 35/60-40/35