Subtract 81/6 from 27/54
1st number: 27/54, 2nd number: 13 3/6
27/54 - 81/6 is -13/1.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 6 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 54 × 1 = 54,
27/54 = 27 × 1/54 × 1 = 27/54 - Likewise, for the 2nd fraction, since 6 × 9 = 54,
81/6 = 81 × 9/6 × 9 = 729/54 - Subtract the two like fractions:
27/54 - 729/54 = 27 - 729/54 = -702/54 - After reducing the fraction, the answer is -13/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 27/54-81/12 81/54-81/6 27/54-81/18 27/54-81/30 27/54-81/42