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Subtract 14/81 from 15/18

15/18 - 14/81 is 107/162.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 81 is 162

    Next, find the equivalent fraction of both fractional numbers with denominator 162
  2. For the 1st fraction, since 18 × 9 = 162,
    15/18 = 15 × 9/18 × 9 = 135/162
  3. Likewise, for the 2nd fraction, since 81 × 2 = 162,
    14/81 = 14 × 2/81 × 2 = 28/162
  4. Subtract the two like fractions:
    135/162 - 28/162 = 135 - 28/162 = 107/162

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