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Answers.everydaycalculation.com » Compare fractions

Compare 30/45 and 63/80

30/45 is smaller than 63/80

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,
    30/45 = 30 × 16/45 × 16 = 480/720
  3. Likewise, for the 2nd fraction, since 80 × 9 = 720,
    63/80 = 63 × 9/80 × 9 = 567/720
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 480/720 < 567/720 or 30/45 < 63/80

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