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Subtract 40/36 from 45/54

1st number: 45/54, 2nd number: 1 4/36

45/54 - 40/36 is -5/18.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 54 and 36 is 108

    Next, find the equivalent fraction of both fractional numbers with denominator 108
  2. For the 1st fraction, since 54 × 2 = 108,
    45/54 = 45 × 2/54 × 2 = 90/108
  3. Likewise, for the 2nd fraction, since 36 × 3 = 108,
    40/36 = 40 × 3/36 × 3 = 120/108
  4. Subtract the two like fractions:
    90/108 - 120/108 = 90 - 120/108 = -30/108
  5. After reducing the fraction, the answer is -5/18

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