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Answers.everydaycalculation.com » Compare fractions

Compare 21/84 and 3/18

21/84 is greater than 3/18

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 18 is 252

    Next, find the equivalent fraction of both fractional numbers with denominator 252
  2. For the 1st fraction, since 84 × 3 = 252,
    21/84 = 21 × 3/84 × 3 = 63/252
  3. Likewise, for the 2nd fraction, since 18 × 14 = 252,
    3/18 = 3 × 14/18 × 14 = 42/252
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 63/252 > 42/252 or 21/84 > 3/18

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