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Answers.everydaycalculation.com » Compare fractions

Compare 20/63 and 18/45

20/63 is smaller than 18/45

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 63 and 45 is 315

    Next, find the equivalent fraction of both fractional numbers with denominator 315
  2. For the 1st fraction, since 63 × 5 = 315,
    20/63 = 20 × 5/63 × 5 = 100/315
  3. Likewise, for the 2nd fraction, since 45 × 7 = 315,
    18/45 = 18 × 7/45 × 7 = 126/315
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 100/315 < 126/315 or 20/63 < 18/45

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