Subtract 10/20 from 80/7
1st number: 11 3/7, 2nd number: 10/20
80/7 - 10/20 is 153/14.
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,
80/7 = 80 × 20/7 × 20 = 1600/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
10/20 = 10 × 7/20 × 7 = 70/140 - Subtract the two like fractions:
1600/140 - 70/140 = 1600 - 70/140 = 1530/140 - After reducing the fraction, the answer is 153/14
- In mixed form: 1013/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/14-10/20 80/7-10/40 80/7-30/20 80/21-10/20 80/7-10/60 80/7-50/20 80/35-10/20 80/7-70/20 80/49-10/20