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Answers.everydaycalculation.com » Compare fractions

Compare 45/12 and 84/80

1st number: 3 9/12, 2nd number: 1 4/80

45/12 is greater than 84/80

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 80 is 240
  2. For the 1st fraction, since 12 × 20 = 240,
    45/12 = 45 × 20/12 × 20 = 900/240
  3. Likewise, for the 2nd fraction, since 80 × 3 = 240,
    84/80 = 84 × 3/80 × 3 = 252/240
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 900/240 > 252/240 or 45/12 > 84/80

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