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Subtract 5/30 from 12/27

12/27 - 5/30 is 5/18.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 27 and 30 is 270

    Next, find the equivalent fraction of both fractional numbers with denominator 270
  2. For the 1st fraction, since 27 × 10 = 270,
    12/27 = 12 × 10/27 × 10 = 120/270
  3. Likewise, for the 2nd fraction, since 30 × 9 = 270,
    5/30 = 5 × 9/30 × 9 = 45/270
  4. Subtract the two like fractions:
    120/270 - 45/270 = 120 - 45/270 = 75/270
  5. After reducing the fraction, the answer is 5/18

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