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Answers.everydaycalculation.com » Compare fractions

Compare 5/4 and 42/81

1st number: 1 1/4, 2nd number: 42/81

5/4 is greater than 42/81

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 81 is 324

    Next, find the equivalent fraction of both fractional numbers with denominator 324
  2. For the 1st fraction, since 4 × 81 = 324,
    5/4 = 5 × 81/4 × 81 = 405/324
  3. Likewise, for the 2nd fraction, since 81 × 4 = 324,
    42/81 = 42 × 4/81 × 4 = 168/324
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 405/324 > 168/324 or 5/4 > 42/81

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