Subtract 8/7 from 6/20
1st number: 6/20, 2nd number: 1 1/7
6/20 - 8/7 is -59/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 7 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,
6/20 = 6 × 7/20 × 7 = 42/140 - Likewise, for the 2nd fraction, since 7 × 20 = 140,
8/7 = 8 × 20/7 × 20 = 160/140 - Subtract the two like fractions:
42/140 - 160/140 = 42 - 160/140 = -118/140 - After reducing the fraction, the answer is -59/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/20-8/7 6/20-16/7 6/40-8/7 6/20-8/14 18/20-8/7 6/20-24/7 6/60-8/7 6/20-8/21 30/20-8/7 6/20-40/7 6/20-8/35 42/20-8/7 6/20-56/7 6/20-8/49