Subtract 56/18 from 27/12
1st number: 2 3/12, 2nd number: 3 2/18
27/12 - 56/18 is -31/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 18 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 12 × 3 = 36,
27/12 = 27 × 3/12 × 3 = 81/36 - Likewise, for the 2nd fraction, since 18 × 2 = 36,
56/18 = 56 × 2/18 × 2 = 112/36 - Subtract the two like fractions:
81/36 - 112/36 = 81 - 112/36 = -31/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/12-56/18 27/24-56/18 27/12-56/36 81/12-56/18 27/36-56/18 27/12-56/54 27/60-56/18 27/12-56/90 27/84-56/18