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Subtract 10/81 from 40/36

1st number: 1 4/36, 2nd number: 10/81

40/36 - 10/81 is 80/81.

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,
    10/81 = 10 × 4/81 × 4 = 40/324
  4. Subtract the two like fractions:
    360/324 - 40/324 = 360 - 40/324 = 320/324
  5. After reducing the fraction, the answer is 80/81

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