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Subtract 9/12 from 9/18

9/18 - 9/12 is -1/4.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 12 is 36

    Next, find the equivalent fraction of both fractional numbers with denominator 36
  2. For the 1st fraction, since 18 × 2 = 36,
    9/18 = 9 × 2/18 × 2 = 18/36
  3. Likewise, for the 2nd fraction, since 12 × 3 = 36,
    9/12 = 9 × 3/12 × 3 = 27/36
  4. Subtract the two like fractions:
    18/36 - 27/36 = 18 - 27/36 = -9/36
  5. After reducing the fraction, the answer is -1/4

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