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Answers.everydaycalculation.com » Compare fractions

Compare 45/63 and 72/90

45/63 is smaller than 72/90

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 63 and 90 is 630

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 63 × 10 = 630,
    45/63 = 45 × 10/63 × 10 = 450/630
  3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
    72/90 = 72 × 7/90 × 7 = 504/630
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 450/630 < 504/630 or 45/63 < 72/90

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