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Subtract 28/27 from 12/18

1st number: 12/18, 2nd number: 1 1/27

12/18 - 28/27 is -10/27.

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,
    12/18 = 12 × 3/18 × 3 = 36/54
  3. Likewise, for the 2nd fraction, since 27 × 2 = 54,
    28/27 = 28 × 2/27 × 2 = 56/54
  4. Subtract the two like fractions:
    36/54 - 56/54 = 36 - 56/54 = -20/54
  5. After reducing the fraction, the answer is -10/27

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