Subtract 7/20 from 50/7
1st number: 7 1/7, 2nd number: 7/20
50/7 - 7/20 is 951/140.
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,
50/7 = 50 × 20/7 × 20 = 1000/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
7/20 = 7 × 7/20 × 7 = 49/140 - Subtract the two like fractions:
1000/140 - 49/140 = 1000 - 49/140 = 951/140 - In mixed form: 6111/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/7-14/20 50/14-7/20 50/7-7/40 50/7-21/20 50/21-7/20 50/7-7/60 50/7-35/20 50/35-7/20 50/7-49/20 50/49-7/20