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Answers.everydaycalculation.com » Compare fractions

Compare 42/81 and 1/5

42/81 is greater than 1/5

Steps for comparing fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 405
  2. For the 1st fraction, since 81 × 5 = 405,
    42/81 = 42 × 5/81 × 5 = 210/405
  3. Likewise, for the 2nd fraction, since 5 × 81 = 405,
    1/5 = 1 × 81/5 × 81 = 81/405
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 210/405 > 81/405 or 42/81 > 1/5

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