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Answers.everydaycalculation.com » Compare fractions

Compare 45/84 and 84/80

1st number: 45/84, 2nd number: 1 4/80

45/84 is smaller than 84/80

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 80 is 1680
  2. For the 1st fraction, since 84 × 20 = 1680,
    45/84 = 45 × 20/84 × 20 = 900/1680
  3. Likewise, for the 2nd fraction, since 80 × 21 = 1680,
    84/80 = 84 × 21/80 × 21 = 1764/1680
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 900/1680 < 1764/1680 or 45/84 < 84/80

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