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Answers.everydaycalculation.com » Compare fractions

Compare 6/5 and 21/81

1st number: 1 1/5, 2nd number: 21/81

6/5 is greater than 21/81

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 81 is 405

    Next, find the equivalent fraction of both fractional numbers with denominator 405
  2. For the 1st fraction, since 5 × 81 = 405,
    6/5 = 6 × 81/5 × 81 = 486/405
  3. Likewise, for the 2nd fraction, since 81 × 5 = 405,
    21/81 = 21 × 5/81 × 5 = 105/405
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 486/405 > 105/405 or 6/5 > 21/81

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