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Subtract 15/75 from 12/54

12/54 - 15/75 is 1/45.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 54 and 75 is 1350

    Next, find the equivalent fraction of both fractional numbers with denominator 1350
  2. For the 1st fraction, since 54 × 25 = 1350,
    12/54 = 12 × 25/54 × 25 = 300/1350
  3. Likewise, for the 2nd fraction, since 75 × 18 = 1350,
    15/75 = 15 × 18/75 × 18 = 270/1350
  4. Subtract the two like fractions:
    300/1350 - 270/1350 = 300 - 270/1350 = 30/1350
  5. After reducing the fraction, the answer is 1/45

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