Subtract 14/20 from 15/7
1st number: 2 1/7, 2nd number: 14/20
15/7 - 14/20 is 101/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 7 × 20 = 140,
15/7 = 15 × 20/7 × 20 = 300/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
14/20 = 14 × 7/20 × 7 = 98/140 - Subtract the two like fractions:
300/140 - 98/140 = 300 - 98/140 = 202/140 - After reducing the fraction, the answer is 101/70
- In mixed form: 131/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/7-14/20 15/7-28/20 15/14-14/20 15/7-14/40 45/7-14/20 15/7-42/20 15/21-14/20 15/7-14/60 75/7-14/20 15/7-70/20 15/35-14/20 15/7-98/20 15/49-14/20