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Answers.everydaycalculation.com » Compare fractions

Compare 90/84 and 90/72

1st number: 1 6/84, 2nd number: 1 18/72

90/84 is smaller than 90/72

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 72 is 504

    Next, find the equivalent fraction of both fractional numbers with denominator 504
  2. For the 1st fraction, since 84 × 6 = 504,
    90/84 = 90 × 6/84 × 6 = 540/504
  3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
    90/72 = 90 × 7/72 × 7 = 630/504
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 540/504 < 630/504 or 90/84 < 90/72

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