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Answers.everydaycalculation.com » Compare fractions

Compare 27/15 and 21/5

1st number: 1 12/15, 2nd number: 4 1/5

27/15 is smaller than 21/5

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 5 is 15

    Next, find the equivalent fraction of both fractional numbers with denominator 15
  2. For the 1st fraction, since 15 × 1 = 15,
    27/15 = 27 × 1/15 × 1 = 27/15
  3. Likewise, for the 2nd fraction, since 5 × 3 = 15,
    21/5 = 21 × 3/5 × 3 = 63/15
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 27/15 < 63/15 or 27/15 < 21/5

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