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Subtract 20/27 from 84/81

1st number: 1 3/81, 2nd number: 20/27

84/81 - 20/27 is 8/27.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 81 and 27 is 81
  2. For the 1st fraction, since 81 × 1 = 81,
    84/81 = 84 × 1/81 × 1 = 84/81
  3. Likewise, for the 2nd fraction, since 27 × 3 = 81,
    20/27 = 20 × 3/27 × 3 = 60/81
  4. Subtract the two fractions:
    84/81 - 60/81 = 84 - 60/81 = 24/81
  5. After reducing the fraction, the answer is 8/27

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