Subtract 3/81 from 56/12
1st number: 4 8/12, 2nd number: 3/81
56/12 - 3/81 is 125/27.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 81 is 324
Next, find the equivalent fraction of both fractional numbers with denominator 324 - For the 1st fraction, since 12 × 27 = 324,
56/12 = 56 × 27/12 × 27 = 1512/324 - Likewise, for the 2nd fraction, since 81 × 4 = 324,
3/81 = 3 × 4/81 × 4 = 12/324 - Subtract the two like fractions:
1512/324 - 12/324 = 1512 - 12/324 = 1500/324 - After reducing the fraction, the answer is 125/27
- In mixed form: 417/27
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/12-6/81 56/24-3/81 56/12-9/81 56/36-3/81 56/12-15/81 56/60-3/81 56/12-21/81 56/84-3/81