Subtract 84/81 from 56/3
1st number: 18 2/3, 2nd number: 1 3/81
56/3 - 84/81 is 476/27.
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,
56/3 = 56 × 27/3 × 27 = 1512/81 - Likewise, for the 2nd fraction, since 81 × 1 = 81,
84/81 = 84 × 1/81 × 1 = 84/81 - Subtract the two like fractions:
1512/81 - 84/81 = 1512 - 84/81 = 1428/81 - After reducing the fraction, the answer is 476/27
- In mixed form: 1717/27
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/6-84/81 56/9-84/81 56/15-84/81 56/21-84/81