Subtract 20/12 from 6/8
1st number: 6/8, 2nd number: 1 8/12
6/8 - 20/12 is -11/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 12 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 8 × 3 = 24,
6/8 = 6 × 3/8 × 3 = 18/24 - Likewise, for the 2nd fraction, since 12 × 2 = 24,
20/12 = 20 × 2/12 × 2 = 40/24 - Subtract the two like fractions:
18/24 - 40/24 = 18 - 40/24 = -22/24 - After reducing the fraction, the answer is -11/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/8-20/12 6/8-40/12 6/16-20/12 6/8-20/24 18/8-20/12 6/8-60/12 6/24-20/12 6/8-20/36 30/8-20/12 6/40-20/12 6/8-20/60 42/8-20/12 6/56-20/12 6/8-20/84