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Answers.everydaycalculation.com » Compare fractions

Compare 12/28 and 21/27

12/28 is smaller than 21/27

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 27 is 756

    Next, find the equivalent fraction of both fractional numbers with denominator 756
  2. For the 1st fraction, since 28 × 27 = 756,
    12/28 = 12 × 27/28 × 27 = 324/756
  3. Likewise, for the 2nd fraction, since 27 × 28 = 756,
    21/27 = 21 × 28/27 × 28 = 588/756
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 324/756 < 588/756 or 12/28 < 21/27

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