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Answers.everydaycalculation.com » Compare fractions

Compare 8/21 and 2/90

8/21 is greater than 2/90

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,
    8/21 = 8 × 30/21 × 30 = 240/630
  3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
    2/90 = 2 × 7/90 × 7 = 14/630
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 240/630 > 14/630 or 8/21 > 2/90

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