Subtract 15/80 from 45/7
1st number: 6 3/7, 2nd number: 15/80
45/7 - 15/80 is 699/112.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 80 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 7 × 80 = 560,
45/7 = 45 × 80/7 × 80 = 3600/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
15/80 = 15 × 7/80 × 7 = 105/560 - Subtract the two like fractions:
3600/560 - 105/560 = 3600 - 105/560 = 3495/560 - After reducing the fraction, the answer is 699/112
- In mixed form: 627/112
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/7-15/80 45/7-30/80 45/14-15/80 45/7-45/80 45/21-15/80 45/7-75/80 45/35-15/80 45/49-15/80