Subtract 2/40 from 2/20
2/20 - 2/40 is 1/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 20 × 2 = 40,
2/20 = 2 × 2/20 × 2 = 4/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
2/40 = 2 × 1/40 × 1 = 2/40 - Subtract the two like fractions:
4/40 - 2/40 = 4 - 2/40 = 2/40 - After reducing the fraction, the answer is 1/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/20-2/40 2/20-4/40 2/40-2/40 2/20-2/80 6/20-2/40 2/20-6/40 2/60-2/40 10/20-2/40 2/20-10/40 14/20-2/40 2/20-14/40