Subtract 1/81 from 3/56
3/56 - 1/81 is 187/4536.
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,
3/56 = 3 × 81/56 × 81 = 243/4536 - Likewise, for the 2nd fraction, since 81 × 56 = 4536,
1/81 = 1 × 56/81 × 56 = 56/4536 - Subtract the two like fractions:
243/4536 - 56/4536 = 243 - 56/4536 = 187/4536
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/56-1/81 3/56-2/81 9/56-1/81 3/56-3/81 15/56-1/81 3/56-5/81 21/56-1/81 3/56-7/81