Subtract 72/7 from 36/80
1st number: 36/80, 2nd number: 10 2/7
36/80 - 72/7 is -1377/140.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 7 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 80 × 7 = 560,
36/80 = 36 × 7/80 × 7 = 252/560 - Likewise, for the 2nd fraction, since 7 × 80 = 560,
72/7 = 72 × 80/7 × 80 = 5760/560 - Subtract the two like fractions:
252/560 - 5760/560 = 252 - 5760/560 = -5508/560 - After reducing the fraction, the answer is -1377/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/80-72/7 36/80-72/14 36/80-72/21 36/80-72/35 36/80-72/49