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Answers.everydaycalculation.com » Compare fractions

Compare 36/45 and 81/80

1st number: 36/45, 2nd number: 1 1/80

36/45 is smaller than 81/80

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 80 is 720

    Next, find the equivalent fraction of both fractional numbers with denominator 720
  2. For the 1st fraction, since 45 × 16 = 720,
    36/45 = 36 × 16/45 × 16 = 576/720
  3. Likewise, for the 2nd fraction, since 80 × 9 = 720,
    81/80 = 81 × 9/80 × 9 = 729/720
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 576/720 < 729/720 or 36/45 < 81/80

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