Subtract 4/7 from 5/80
5/80 - 4/7 is -57/112.
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,
5/80 = 5 × 7/80 × 7 = 35/560 - Likewise, for the 2nd fraction, since 7 × 80 = 560,
4/7 = 4 × 80/7 × 80 = 320/560 - Subtract the two like fractions:
35/560 - 320/560 = 35 - 320/560 = -285/560 - After reducing the fraction, the answer is -57/112
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/80-4/7 5/80-8/7 5/80-4/14 15/80-4/7 5/80-12/7 5/80-4/21 25/80-4/7 5/80-20/7 5/80-4/35 35/80-4/7 5/80-28/7 5/80-4/49