Subtract 80/7 from 10/15
1st number: 10/15, 2nd number: 11 3/7
10/15 - 80/7 is -226/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 7 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 15 × 7 = 105,
10/15 = 10 × 7/15 × 7 = 70/105 - Likewise, for the 2nd fraction, since 7 × 15 = 105,
80/7 = 80 × 15/7 × 15 = 1200/105 - Subtract the two like fractions:
70/105 - 1200/105 = 70 - 1200/105 = -1130/105 - After reducing the fraction, the answer is -226/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/15-80/7 10/30-80/7 10/15-80/14 30/15-80/7 10/45-80/7 10/15-80/21 50/15-80/7 10/75-80/7 10/15-80/35 70/15-80/7 10/15-80/49