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Answers.everydaycalculation.com » Compare fractions

Compare 45/18 and 72/90

1st number: 2 9/18, 2nd number: 72/90

45/18 is greater than 72/90

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 90 is 90

    Next, find the equivalent fraction of both fractional numbers with denominator 90
  2. For the 1st fraction, since 18 × 5 = 90,
    45/18 = 45 × 5/18 × 5 = 225/90
  3. Likewise, for the 2nd fraction, since 90 × 1 = 90,
    72/90 = 72 × 1/90 × 1 = 72/90
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 225/90 > 72/90 or 45/18 > 72/90

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