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Subtract 84/81 from 40/36

1st number: 1 4/36, 2nd number: 1 3/81

40/36 - 84/81 is 2/27.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 36 and 81 is 324

    Next, find the equivalent fraction of both fractional numbers with denominator 324
  2. For the 1st fraction, since 36 × 9 = 324,
    40/36 = 40 × 9/36 × 9 = 360/324
  3. Likewise, for the 2nd fraction, since 81 × 4 = 324,
    84/81 = 84 × 4/81 × 4 = 336/324
  4. Subtract the two like fractions:
    360/324 - 336/324 = 360 - 336/324 = 24/324
  5. After reducing the fraction, the answer is 2/27

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