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Subtract 15/27 from 1/18

1/18 - 15/27 is -1/2.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 27 is 54

    Next, find the equivalent fraction of both fractional numbers with denominator 54
  2. For the 1st fraction, since 18 × 3 = 54,
    1/18 = 1 × 3/18 × 3 = 3/54
  3. Likewise, for the 2nd fraction, since 27 × 2 = 54,
    15/27 = 15 × 2/27 × 2 = 30/54
  4. Subtract the two like fractions:
    3/54 - 30/54 = 3 - 30/54 = -27/54
  5. After reducing the fraction, the answer is -1/2

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