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Answers.everydaycalculation.com » Compare fractions

Compare 3/8 and 63/21

1st number: 3/8, 2nd number: 3 0/21

3/8 is smaller than 63/21

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 21 is 168

    Next, find the equivalent fraction of both fractional numbers with denominator 168
  2. For the 1st fraction, since 8 × 21 = 168,
    3/8 = 3 × 21/8 × 21 = 63/168
  3. Likewise, for the 2nd fraction, since 21 × 8 = 168,
    63/21 = 63 × 8/21 × 8 = 504/168
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 63/168 < 504/168 or 3/8 < 63/21

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