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Answers.everydaycalculation.com » Compare fractions

Compare 12/72 and 42/90

12/72 is smaller than 42/90

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 90 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 72 × 5 = 360,
    12/72 = 12 × 5/72 × 5 = 60/360
  3. Likewise, for the 2nd fraction, since 90 × 4 = 360,
    42/90 = 42 × 4/90 × 4 = 168/360
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 60/360 < 168/360 or 12/72 < 42/90

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