Subtract 10/81 from 1/10
1/10 - 10/81 is -19/810.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 81 is 810
Next, find the equivalent fraction of both fractional numbers with denominator 810 - For the 1st fraction, since 10 × 81 = 810,
1/10 = 1 × 81/10 × 81 = 81/810 - Likewise, for the 2nd fraction, since 81 × 10 = 810,
10/81 = 10 × 10/81 × 10 = 100/810 - Subtract the two like fractions:
81/810 - 100/810 = 81 - 100/810 = -19/810
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/10-10/81 1/10-20/81 1/20-10/81 3/10-10/81 1/10-30/81 1/30-10/81 5/10-10/81 1/10-50/81 1/50-10/81 7/10-10/81 1/10-70/81 1/70-10/81