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Subtract 84/27 from 4/81

1st number: 4/81, 2nd number: 3 3/27

4/81 - 84/27 is -248/81.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 81 and 27 is 81

    Next, find the equivalent fraction of both fractional numbers with denominator 81
  2. For the 1st fraction, since 81 × 1 = 81,
    4/81 = 4 × 1/81 × 1 = 4/81
  3. Likewise, for the 2nd fraction, since 27 × 3 = 81,
    84/27 = 84 × 3/27 × 3 = 252/81
  4. Subtract the two like fractions:
    4/81 - 252/81 = 4 - 252/81 = -248/81

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