Subtract 2/6 from 2/81
2/81 - 2/6 is -25/81.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 6 is 162
Next, find the equivalent fraction of both fractional numbers with denominator 162 - For the 1st fraction, since 81 × 2 = 162,
2/81 = 2 × 2/81 × 2 = 4/162 - Likewise, for the 2nd fraction, since 6 × 27 = 162,
2/6 = 2 × 27/6 × 27 = 54/162 - Subtract the two like fractions:
4/162 - 54/162 = 4 - 54/162 = -50/162 - After reducing the fraction, the answer is -25/81
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/81-2/6 2/81-4/6 2/81-2/12 6/81-2/6 2/81-2/18 10/81-2/6 2/81-10/6 2/81-2/30 14/81-2/6 2/81-14/6 2/81-2/42