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Subtract 70/81 from 4/27

4/27 - 70/81 is -58/81.

Steps for subtracting fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 81
  2. For the 1st fraction, since 27 × 3 = 81,
    4/27 = 4 × 3/27 × 3 = 12/81
  3. Likewise, for the 2nd fraction, since 81 × 1 = 81,
    70/81 = 70 × 1/81 × 1 = 70/81
  4. Subtract the two like fractions:
    12/81 - 70/81 = 12 - 70/81 = -58/81

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