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Answers.everydaycalculation.com » Compare fractions

Compare 80/42 and 3/90

1st number: 1 38/42, 2nd number: 3/90

80/42 is greater than 3/90

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 90 is 630

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 42 × 15 = 630,
    80/42 = 80 × 15/42 × 15 = 1200/630
  3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
    3/90 = 3 × 7/90 × 7 = 21/630
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 1200/630 > 21/630 or 80/42 > 3/90

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