Subtract 28/81 from 4/6
4/6 - 28/81 is 26/81.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 81 is 162
Next, find the equivalent fraction of both fractional numbers with denominator 162 - For the 1st fraction, since 6 × 27 = 162,
4/6 = 4 × 27/6 × 27 = 108/162 - Likewise, for the 2nd fraction, since 81 × 2 = 162,
28/81 = 28 × 2/81 × 2 = 56/162 - Subtract the two like fractions:
108/162 - 56/162 = 108 - 56/162 = 52/162 - After reducing the fraction, the answer is 26/81
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/6-28/81 4/6-56/81 4/12-28/81 12/6-28/81 4/6-84/81 4/18-28/81 20/6-28/81 4/30-28/81 28/6-28/81 4/42-28/81