Subtract 81/54 from 2/12
1st number: 2/12, 2nd number: 1 27/54
2/12 - 81/54 is -4/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 54 is 108
Next, find the equivalent fraction of both fractional numbers with denominator 108 - For the 1st fraction, since 12 × 9 = 108,
2/12 = 2 × 9/12 × 9 = 18/108 - Likewise, for the 2nd fraction, since 54 × 2 = 108,
81/54 = 81 × 2/54 × 2 = 162/108 - Subtract the two like fractions:
18/108 - 162/108 = 18 - 162/108 = -144/108 - After reducing the fraction, the answer is -4/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/12-81/54 2/24-81/54 6/12-81/54 2/36-81/54 10/12-81/54 2/60-81/54 14/12-81/54 2/84-81/54