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Answers.everydaycalculation.com » Compare fractions

Compare 9/16 and 21/40

9/16 is greater than 21/40

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 16 and 40 is 80

    Next, find the equivalent fraction of both fractional numbers with denominator 80
  2. For the 1st fraction, since 16 × 5 = 80,
    9/16 = 9 × 5/16 × 5 = 45/80
  3. Likewise, for the 2nd fraction, since 40 × 2 = 80,
    21/40 = 21 × 2/40 × 2 = 42/80
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 45/80 > 42/80 or 9/16 > 21/40

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