Subtract 5/56 from 56/81
56/81 - 5/56 is 2731/4536.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 56 is 4536
Next, find the equivalent fraction of both fractional numbers with denominator 4536 - For the 1st fraction, since 81 × 56 = 4536,
56/81 = 56 × 56/81 × 56 = 3136/4536 - Likewise, for the 2nd fraction, since 56 × 81 = 4536,
5/56 = 5 × 81/56 × 81 = 405/4536 - Subtract the two like fractions:
3136/4536 - 405/4536 = 3136 - 405/4536 = 2731/4536
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/81-10/56 56/81-15/56 56/81-25/56 56/81-35/56