Subtract 81/3 from 20/10
1st number: 2 0/10, 2nd number: 27 0/3
20/10 - 81/3 is -25/1.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 3 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 10 × 3 = 30,
20/10 = 20 × 3/10 × 3 = 60/30 - Likewise, for the 2nd fraction, since 3 × 10 = 30,
81/3 = 81 × 10/3 × 10 = 810/30 - Subtract the two like fractions:
60/30 - 810/30 = 60 - 810/30 = -750/30 - After reducing the fraction, the answer is -25/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/10-81/3 20/10-81/6 60/10-81/3 20/30-81/3 20/10-81/9 20/50-81/3 20/10-81/15 20/70-81/3 20/10-81/21