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Answers.everydaycalculation.com » Compare fractions

Compare 42/2 and 54/45

1st number: 21 0/2, 2nd number: 1 9/45

42/2 is greater than 54/45

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 2 and 45 is 90

    Next, find the equivalent fraction of both fractional numbers with denominator 90
  2. For the 1st fraction, since 2 × 45 = 90,
    42/2 = 42 × 45/2 × 45 = 1890/90
  3. Likewise, for the 2nd fraction, since 45 × 2 = 90,
    54/45 = 54 × 2/45 × 2 = 108/90
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 1890/90 > 108/90 or 42/2 > 54/45

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