Subtract 1/7 from 3/80
3/80 - 1/7 is -59/560.
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,
3/80 = 3 × 7/80 × 7 = 21/560 - Likewise, for the 2nd fraction, since 7 × 80 = 560,
1/7 = 1 × 80/7 × 80 = 80/560 - Subtract the two like fractions:
21/560 - 80/560 = 21 - 80/560 = -59/560
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/80-1/7 3/80-2/7 3/80-1/14 9/80-1/7 3/80-3/7 3/80-1/21 15/80-1/7 3/80-5/7 3/80-1/35 21/80-1/7 3/80-1/49