Subtract 72/20 from 35/14
1st number: 2 7/14, 2nd number: 3 12/20
35/14 - 72/20 is -11/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 14 × 10 = 140,
35/14 = 35 × 10/14 × 10 = 350/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
72/20 = 72 × 7/20 × 7 = 504/140 - Subtract the two like fractions:
350/140 - 504/140 = 350 - 504/140 = -154/140 - After reducing the fraction, the answer is -11/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/14-72/20 35/28-72/20 35/14-72/40 35/42-72/20 35/14-72/60 35/70-72/20 35/98-72/20