Question

Write the natural numbers from 2 to 12. What fraction of them are prime numbers?

Answer 1

Natural numbers from 2 to 12 are: 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12

Number of Natural numbers from 2 to 12 = 11

Prime numbers from 2 to 12: 2, 3, 5, 7, 11

Number of Prime numbers from 2 to 12 = 5

Hence, the fraction of prime numbers from 2 to 12 = $\frac{5}{11}$