Subtract 81/14 from 27/28
1st number: 27/28, 2nd number: 5 11/14
27/28 - 81/14 is -135/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 14 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 28 × 1 = 28,
27/28 = 27 × 1/28 × 1 = 27/28 - Likewise, for the 2nd fraction, since 14 × 2 = 28,
81/14 = 81 × 2/14 × 2 = 162/28 - Subtract the two like fractions:
27/28 - 162/28 = 27 - 162/28 = -135/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/28-81/14 27/56-81/14 27/28-81/28 81/28-81/14 27/84-81/14 27/28-81/42 27/28-81/70 27/28-81/98