Subtract 2/81 from 27/56
27/56 - 2/81 is 2075/4536.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 81 is 4536
Next, find the equivalent fraction of both fractional numbers with denominator 4536 - For the 1st fraction, since 56 × 81 = 4536,
27/56 = 27 × 81/56 × 81 = 2187/4536 - Likewise, for the 2nd fraction, since 81 × 56 = 4536,
2/81 = 2 × 56/81 × 56 = 112/4536 - Subtract the two like fractions:
2187/4536 - 112/4536 = 2187 - 112/4536 = 2075/4536
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/56-2/81 27/56-4/81 81/56-2/81 27/56-6/81 27/56-10/81 27/56-14/81