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Answers.everydaycalculation.com » Compare fractions

Compare 6/20 and 42/18

1st number: 6/20, 2nd number: 2 6/18

6/20 is smaller than 42/18

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 18 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 20 × 9 = 180,
    6/20 = 6 × 9/20 × 9 = 54/180
  3. Likewise, for the 2nd fraction, since 18 × 10 = 180,
    42/18 = 42 × 10/18 × 10 = 420/180
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 54/180 < 420/180 or 6/20 < 42/18

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