Subtract 4/81 from 4/6
4/6 - 4/81 is 50/81.
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,
4/81 = 4 × 2/81 × 2 = 8/162 - Subtract the two like fractions:
108/162 - 8/162 = 108 - 8/162 = 100/162 - After reducing the fraction, the answer is 50/81
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/6-4/81 4/6-8/81 4/12-4/81 12/6-4/81 4/6-12/81 4/18-4/81 20/6-4/81 4/6-20/81 4/30-4/81 28/6-4/81 4/6-28/81 4/42-4/81