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Answers.everydaycalculation.com » Compare fractions

Compare 72/12 and 90/45

1st number: 6 0/12, 2nd number: 2 0/45

72/12 is greater than 90/45

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 45 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 12 × 15 = 180,
    72/12 = 72 × 15/12 × 15 = 1080/180
  3. Likewise, for the 2nd fraction, since 45 × 4 = 180,
    90/45 = 90 × 4/45 × 4 = 360/180
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 1080/180 > 360/180 or 72/12 > 90/45

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