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Subtract 12/9 from 12/81

1st number: 12/81, 2nd number: 1 3/9

12/81 - 12/9 is -32/27.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 81 and 9 is 81

    Next, find the equivalent fraction of both fractional numbers with denominator 81
  2. For the 1st fraction, since 81 × 1 = 81,
    12/81 = 12 × 1/81 × 1 = 12/81
  3. Likewise, for the 2nd fraction, since 9 × 9 = 81,
    12/9 = 12 × 9/9 × 9 = 108/81
  4. Subtract the two like fractions:
    12/81 - 108/81 = 12 - 108/81 = -96/81
  5. After reducing the fraction, the answer is -32/27

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