Subtract 4/20 from 6/8
6/8 - 4/20 is 11/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 20 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 8 × 5 = 40,
6/8 = 6 × 5/8 × 5 = 30/40 - Likewise, for the 2nd fraction, since 20 × 2 = 40,
4/20 = 4 × 2/20 × 2 = 8/40 - Subtract the two like fractions:
30/40 - 8/40 = 30 - 8/40 = 22/40 - After reducing the fraction, the answer is 11/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/8-4/20 6/8-8/20 6/16-4/20 6/8-4/40 18/8-4/20 6/8-12/20 6/24-4/20 6/8-4/60 30/8-4/20 6/40-4/20 42/8-4/20 6/8-28/20 6/56-4/20