Subtract 27/80 from 4/7
4/7 - 27/80 is 131/560.
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,
4/7 = 4 × 80/7 × 80 = 320/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
27/80 = 27 × 7/80 × 7 = 189/560 - Subtract the two like fractions:
320/560 - 189/560 = 320 - 189/560 = 131/560
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/7-27/80 4/7-54/80 4/14-27/80 12/7-27/80 4/7-81/80 4/21-27/80 20/7-27/80 4/35-27/80 28/7-27/80 4/49-27/80