Subtract 15/7 from 80/5
1st number: 16 0/5, 2nd number: 2 1/7
80/5 - 15/7 is 97/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 7 is 35
Next, find the equivalent fraction of both fractional numbers with denominator 35 - For the 1st fraction, since 5 × 7 = 35,
80/5 = 80 × 7/5 × 7 = 560/35 - Likewise, for the 2nd fraction, since 7 × 5 = 35,
15/7 = 15 × 5/7 × 5 = 75/35 - Subtract the two like fractions:
560/35 - 75/35 = 560 - 75/35 = 485/35 - After reducing the fraction, the answer is 97/7
- In mixed form: 136/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/5-30/7 80/10-15/7 80/5-15/14 80/5-45/7 80/15-15/7 80/5-15/21 80/5-75/7 80/25-15/7 80/5-15/35 80/35-15/7 80/5-15/49