Subtract 56/27 from 20/12
1st number: 1 8/12, 2nd number: 2 2/27
20/12 - 56/27 is -11/27.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 27 is 108
Next, find the equivalent fraction of both fractional numbers with denominator 108 - For the 1st fraction, since 12 × 9 = 108,
20/12 = 20 × 9/12 × 9 = 180/108 - Likewise, for the 2nd fraction, since 27 × 4 = 108,
56/27 = 56 × 4/27 × 4 = 224/108 - Subtract the two like fractions:
180/108 - 224/108 = 180 - 224/108 = -44/108 - After reducing the fraction, the answer is -11/27
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/12-56/27 20/24-56/27 20/12-56/54 60/12-56/27 20/36-56/27 20/12-56/81 20/60-56/27 20/84-56/27