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Answers.everydaycalculation.com » Compare fractions

Compare 70/20 and 3/81

1st number: 3 10/20, 2nd number: 3/81

70/20 is greater than 3/81

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 81 is 1620

    Next, find the equivalent fraction of both fractional numbers with denominator 1620
  2. For the 1st fraction, since 20 × 81 = 1620,
    70/20 = 70 × 81/20 × 81 = 5670/1620
  3. Likewise, for the 2nd fraction, since 81 × 20 = 1620,
    3/81 = 3 × 20/81 × 20 = 60/1620
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 5670/1620 > 60/1620 or 70/20 > 3/81

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