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Subtract 3/81 from 25/84

25/84 - 3/81 is 197/756.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 81 is 2268
  2. For the 1st fraction, since 84 × 27 = 2268,
    25/84 = 25 × 27/84 × 27 = 675/2268
  3. Likewise, for the 2nd fraction, since 81 × 28 = 2268,
    3/81 = 3 × 28/81 × 28 = 84/2268
  4. Subtract the two fractions:
    675/2268 - 84/2268 = 675 - 84/2268 = 591/2268
  5. After reducing the fraction, the answer is 197/756

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