Subtract 56/81 from 5/3
1st number: 1 2/3, 2nd number: 56/81
5/3 - 56/81 is 79/81.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 81 is 81
Next, find the equivalent fraction of both fractional numbers with denominator 81 - For the 1st fraction, since 3 × 27 = 81,
5/3 = 5 × 27/3 × 27 = 135/81 - Likewise, for the 2nd fraction, since 81 × 1 = 81,
56/81 = 56 × 1/81 × 1 = 56/81 - Subtract the two like fractions:
135/81 - 56/81 = 135 - 56/81 = 79/81
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/3-56/81 5/6-56/81 15/3-56/81 5/9-56/81 25/3-56/81 5/15-56/81 35/3-56/81 5/21-56/81