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Answers.everydaycalculation.com » Compare fractions

Compare 6/21 and 18/27

6/21 is smaller than 18/27

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 27 is 189

    Next, find the equivalent fraction of both fractional numbers with denominator 189
  2. For the 1st fraction, since 21 × 9 = 189,
    6/21 = 6 × 9/21 × 9 = 54/189
  3. Likewise, for the 2nd fraction, since 27 × 7 = 189,
    18/27 = 18 × 7/27 × 7 = 126/189
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 54/189 < 126/189 or 6/21 < 18/27

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