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Subtract 9/45 from 12/75

12/75 - 9/45 is -1/25.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 75 and 45 is 225

    Next, find the equivalent fraction of both fractional numbers with denominator 225
  2. For the 1st fraction, since 75 × 3 = 225,
    12/75 = 12 × 3/75 × 3 = 36/225
  3. Likewise, for the 2nd fraction, since 45 × 5 = 225,
    9/45 = 9 × 5/45 × 5 = 45/225
  4. Subtract the two like fractions:
    36/225 - 45/225 = 36 - 45/225 = -9/225
  5. After reducing the fraction, the answer is -1/25

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