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Answers.everydaycalculation.com » Compare fractions

Compare 20/81 and 40/50

20/81 is smaller than 40/50

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 81 and 50 is 4050

    Next, find the equivalent fraction of both fractional numbers with denominator 4050
  2. For the 1st fraction, since 81 × 50 = 4050,
    20/81 = 20 × 50/81 × 50 = 1000/4050
  3. Likewise, for the 2nd fraction, since 50 × 81 = 4050,
    40/50 = 40 × 81/50 × 81 = 3240/4050
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 1000/4050 < 3240/4050 or 20/81 < 40/50

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