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Answers.everydaycalculation.com » Compare fractions

Compare 18/84 and 12/40

18/84 is smaller than 12/40

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 40 is 840

    Next, find the equivalent fraction of both fractional numbers with denominator 840
  2. For the 1st fraction, since 84 × 10 = 840,
    18/84 = 18 × 10/84 × 10 = 180/840
  3. Likewise, for the 2nd fraction, since 40 × 21 = 840,
    12/40 = 12 × 21/40 × 21 = 252/840
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 180/840 < 252/840 or 18/84 < 12/40

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