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Answers.everydaycalculation.com » Compare fractions

Compare 21/2 and 20/6

1st number: 10 1/2, 2nd number: 3 2/6

21/2 is greater than 20/6

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 2 and 6 is 6

    Next, find the equivalent fraction of both fractional numbers with denominator 6
  2. For the 1st fraction, since 2 × 3 = 6,
    21/2 = 21 × 3/2 × 3 = 63/6
  3. Likewise, for the 2nd fraction, since 6 × 1 = 6,
    20/6 = 20 × 1/6 × 1 = 20/6
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 63/6 > 20/6 or 21/2 > 20/6

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