Subtract 2/20 from 1/5
1/5 - 2/20 is 1/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 20 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 5 × 4 = 20,
1/5 = 1 × 4/5 × 4 = 4/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
2/20 = 2 × 1/20 × 1 = 2/20 - Subtract the two like fractions:
4/20 - 2/20 = 4 - 2/20 = 2/20 - After reducing the fraction, the answer is 1/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/5-2/20 1/5-4/20 1/10-2/20 1/5-2/40 3/5-2/20 1/5-6/20 1/15-2/20 1/5-2/60 1/5-10/20 1/25-2/20 7/5-2/20 1/5-14/20 1/35-2/20