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Answers.everydaycalculation.com » Compare fractions

Compare 18/5 and 21/27

1st number: 3 3/5, 2nd number: 21/27

18/5 is greater than 21/27

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 27 is 135

    Next, find the equivalent fraction of both fractional numbers with denominator 135
  2. For the 1st fraction, since 5 × 27 = 135,
    18/5 = 18 × 27/5 × 27 = 486/135
  3. Likewise, for the 2nd fraction, since 27 × 5 = 135,
    21/27 = 21 × 5/27 × 5 = 105/135
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 486/135 > 105/135 or 18/5 > 21/27

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