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Answers.everydaycalculation.com » Compare fractions

Compare 21/60 and 21/90

21/60 is greater than 21/90

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 60 and 90 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 60 × 3 = 180,
    21/60 = 21 × 3/60 × 3 = 63/180
  3. Likewise, for the 2nd fraction, since 90 × 2 = 180,
    21/90 = 21 × 2/90 × 2 = 42/180
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 63/180 > 42/180 or 21/60 > 21/90

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