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Subtract 7/27 from 15/18

15/18 - 7/27 is 31/54.

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,
    15/18 = 15 × 3/18 × 3 = 45/54
  3. Likewise, for the 2nd fraction, since 27 × 2 = 54,
    7/27 = 7 × 2/27 × 2 = 14/54
  4. Subtract the two like fractions:
    45/54 - 14/54 = 45 - 14/54 = 31/54

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