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Answers.everydaycalculation.com » Compare fractions

Compare 3/42 and 1/80

3/42 is greater than 1/80

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 80 is 1680

    Next, find the equivalent fraction of both fractional numbers with denominator 1680
  2. For the 1st fraction, since 42 × 40 = 1680,
    3/42 = 3 × 40/42 × 40 = 120/1680
  3. Likewise, for the 2nd fraction, since 80 × 21 = 1680,
    1/80 = 1 × 21/80 × 21 = 21/1680
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 120/1680 > 21/1680 or 3/42 > 1/80

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