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Answers.everydaycalculation.com » Compare fractions

Compare 84/8 and 20/81

1st number: 10 4/8, 2nd number: 20/81

84/8 is greater than 20/81

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 81 is 648
  2. For the 1st fraction, since 8 × 81 = 648,
    84/8 = 84 × 81/8 × 81 = 6804/648
  3. Likewise, for the 2nd fraction, since 81 × 8 = 648,
    20/81 = 20 × 8/81 × 8 = 160/648
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 6804/648 > 160/648 or 84/8 > 20/81

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