Subtract 10/20 from 1/10
1/10 - 10/20 is -2/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 20 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 10 × 2 = 20,
1/10 = 1 × 2/10 × 2 = 2/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
10/20 = 10 × 1/20 × 1 = 10/20 - Subtract the two like fractions:
2/20 - 10/20 = 2 - 10/20 = -8/20 - After reducing the fraction, the answer is -2/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/10-10/20 1/20-10/20 1/10-10/40 3/10-10/20 1/10-30/20 1/30-10/20 1/10-10/60 5/10-10/20 1/10-50/20 1/50-10/20 7/10-10/20 1/10-70/20 1/70-10/20