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Answers.everydaycalculation.com » Compare fractions

Compare 4/21 and 2/9

4/21 is smaller than 2/9

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 9 is 63

    Next, find the equivalent fraction of both fractional numbers with denominator 63
  2. For the 1st fraction, since 21 × 3 = 63,
    4/21 = 4 × 3/21 × 3 = 12/63
  3. Likewise, for the 2nd fraction, since 9 × 7 = 63,
    2/9 = 2 × 7/9 × 7 = 14/63
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 12/63 < 14/63 or 4/21 < 2/9

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