Answers

Subtract 2/6 from 7/81

7/81 - 2/6 is -20/81.

Steps for subtracting fractions

1. 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
2. For the 1st fraction, since 81 × 2 = 162,
   7/81 = 7 × 2/81 × 2 = 14/162
3. Likewise, for the 2nd fraction, since 6 × 27 = 162,
   2/6 = 2 × 27/6 × 27 = 54/162
4. Subtract the two like fractions:
   14/162 - 54/162 = 14 - 54/162 = -40/162
5. After reducing the fraction, the answer is -20/81

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