Subtract 81/6 from 20/2
1st number: 10 0/2, 2nd number: 13 3/6
20/2 - 81/6 is -7/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 6 is 6
Next, find the equivalent fraction of both fractional numbers with denominator 6 - For the 1st fraction, since 2 × 3 = 6,
20/2 = 20 × 3/2 × 3 = 60/6 - Likewise, for the 2nd fraction, since 6 × 1 = 6,
81/6 = 81 × 1/6 × 1 = 81/6 - Subtract the two like fractions:
60/6 - 81/6 = 60 - 81/6 = -21/6 - After reducing the fraction, the answer is -7/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/2-81/6 20/4-81/6 20/2-81/12 60/2-81/6 20/6-81/6 20/2-81/18 20/10-81/6 20/2-81/30 20/14-81/6 20/2-81/42