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Answers.everydaycalculation.com » Compare fractions

Compare 80/90 and 6/21

80/90 is greater than 6/21

Steps for comparing fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 90 × 7 = 630,
    80/90 = 80 × 7/90 × 7 = 560/630
  3. Likewise, for the 2nd fraction, since 21 × 30 = 630,
    6/21 = 6 × 30/21 × 30 = 180/630
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 560/630 > 180/630 or 80/90 > 6/21

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