Subtract 36/20 from 10/7
1st number: 1 3/7, 2nd number: 1 16/20
10/7 - 36/20 is -13/35.
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,
10/7 = 10 × 20/7 × 20 = 200/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
36/20 = 36 × 7/20 × 7 = 252/140 - Subtract the two like fractions:
200/140 - 252/140 = 200 - 252/140 = -52/140 - After reducing the fraction, the answer is -13/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/7-36/20 10/7-72/20 10/14-36/20 10/7-36/40 30/7-36/20 10/21-36/20 10/7-36/60 50/7-36/20 10/35-36/20 70/7-36/20 10/49-36/20