Subtract 4/10 from 2/20
2/20 - 4/10 is -3/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 10 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 20 × 1 = 20,
2/20 = 2 × 1/20 × 1 = 2/20 - Likewise, for the 2nd fraction, since 10 × 2 = 20,
4/10 = 4 × 2/10 × 2 = 8/20 - Subtract the two like fractions:
2/20 - 8/20 = 2 - 8/20 = -6/20 - After reducing the fraction, the answer is -3/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/20-4/10 2/20-8/10 2/40-4/10 2/20-4/20 6/20-4/10 2/20-12/10 2/60-4/10 2/20-4/30 10/20-4/10 2/20-20/10 2/20-4/50 14/20-4/10 2/20-28/10 2/20-4/70