Subtract 56/81 from 2/9
2/9 - 56/81 is -38/81.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 81 is 81
Next, find the equivalent fraction of both fractional numbers with denominator 81 - For the 1st fraction, since 9 × 9 = 81,
2/9 = 2 × 9/9 × 9 = 18/81 - Likewise, for the 2nd fraction, since 81 × 1 = 81,
56/81 = 56 × 1/81 × 1 = 56/81 - Subtract the two like fractions:
18/81 - 56/81 = 18 - 56/81 = -38/81
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/9-56/81 2/18-56/81 6/9-56/81 2/27-56/81 10/9-56/81 2/45-56/81 14/9-56/81 2/63-56/81