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Answers.everydaycalculation.com » Compare fractions

Compare 8/15 and 21/4

1st number: 8/15, 2nd number: 5 1/4

8/15 is smaller than 21/4

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 4 is 60

    Next, find the equivalent fraction of both fractional numbers with denominator 60
  2. For the 1st fraction, since 15 × 4 = 60,
    8/15 = 8 × 4/15 × 4 = 32/60
  3. Likewise, for the 2nd fraction, since 4 × 15 = 60,
    21/4 = 21 × 15/4 × 15 = 315/60
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 32/60 < 315/60 or 8/15 < 21/4

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