Subtract 1/80 from 8/7
1st number: 1 1/7, 2nd number: 1/80
8/7 - 1/80 is 633/560.
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,
8/7 = 8 × 80/7 × 80 = 640/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
1/80 = 1 × 7/80 × 7 = 7/560 - Subtract the two like fractions:
640/560 - 7/560 = 640 - 7/560 = 633/560 - In mixed form: 173/560
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/7-1/80 8/7-2/80 8/14-1/80 24/7-1/80 8/7-3/80 8/21-1/80 40/7-1/80 8/7-5/80 8/35-1/80 56/7-1/80 8/7-7/80 8/49-1/80