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Answers.everydaycalculation.com » Compare fractions

Compare 8/18 and 21/4

1st number: 8/18, 2nd number: 5 1/4

8/18 is smaller than 21/4

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 4 is 36

    Next, find the equivalent fraction of both fractional numbers with denominator 36
  2. For the 1st fraction, since 18 × 2 = 36,
    8/18 = 8 × 2/18 × 2 = 16/36
  3. Likewise, for the 2nd fraction, since 4 × 9 = 36,
    21/4 = 21 × 9/4 × 9 = 189/36
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 16/36 < 189/36 or 8/18 < 21/4

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