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Answers.everydaycalculation.com » Compare fractions

Compare 6/21 and 36/90

6/21 is smaller than 36/90

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 90 is 630

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 21 × 30 = 630,
    6/21 = 6 × 30/21 × 30 = 180/630
  3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
    36/90 = 36 × 7/90 × 7 = 252/630
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 180/630 < 252/630 or 6/21 < 36/90

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