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Subtract 1/6 from 4/81

4/81 - 1/6 is -19/162.

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,
    4/81 = 4 × 2/81 × 2 = 8/162
  3. Likewise, for the 2nd fraction, since 6 × 27 = 162,
    1/6 = 1 × 27/6 × 27 = 27/162
  4. Subtract the two like fractions:
    8/162 - 27/162 = 8 - 27/162 = -19/162

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