Question

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

Answer 1

The natural numbers from $2$ to $12$ are $2,3,4,5,6,7,8,9,10,11,12$

Total number of natural numbers is $11$(whole)

In that the prime numbers are $2,3,5,7,11$

Total number of prime numbers are $5$(part)

To find the fraction of them, We know that

$$\begin{gathered} Fraction=\frac{Part}{Whole} \\ \therefore Fraction=\frac{5}{11} \end{gathered}$$

Hence, the fraction of them are prime numbers is $\frac{5}{11}$