Subtract 8/7 from 6/8
1st number: 6/8, 2nd number: 1 1/7
6/8 - 8/7 is -11/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 7 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 8 × 7 = 56,
6/8 = 6 × 7/8 × 7 = 42/56 - Likewise, for the 2nd fraction, since 7 × 8 = 56,
8/7 = 8 × 8/7 × 8 = 64/56 - Subtract the two like fractions:
42/56 - 64/56 = 42 - 64/56 = -22/56 - After reducing the fraction, the answer is -11/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/8-8/7 6/8-16/7 6/16-8/7 6/8-8/14 18/8-8/7 6/8-24/7 6/24-8/7 6/8-8/21 30/8-8/7 6/8-40/7 6/40-8/7 6/8-8/35 42/8-8/7 6/8-56/7 6/56-8/7 6/8-8/49