Subtract 28/27 from 27/12
1st number: 2 3/12, 2nd number: 1 1/27
27/12 - 28/27 is 131/108.
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,
27/12 = 27 × 9/12 × 9 = 243/108 - Likewise, for the 2nd fraction, since 27 × 4 = 108,
28/27 = 28 × 4/27 × 4 = 112/108 - Subtract the two like fractions:
243/108 - 112/108 = 243 - 112/108 = 131/108 - In mixed form: 123/108
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/12-28/27 27/12-56/27 27/24-28/27 27/12-28/54 81/12-28/27 27/12-84/27 27/36-28/27 27/12-28/81 27/60-28/27 27/84-28/27