Question

Write all the natural numbers from 1 to 15. What fraction of them are prime numbers?​

Answer 1

Answer:

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Step-by-step explanation:

Prime numbers until 15: 2,3,5,7,11,13. That are 6, and so 6/15 or 2/5 of the natural numbers from 1 to 15 are prime.

Answer 2

The fraction of prime numbers among the natural numbers from 1 to 15 is $\frac{6}{15}$

Step-by-step explanation:

The natural numbers from 1 to 15 are $1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15$

The prime numbers are those which can be divided by themselves only and one.

Out of the above natural numbers, the prime numbers are $2, 3, 5, 7, 11, and 13$

Thus, a total of six numbers are prime out of 15.

Hence, the fraction $=\frac{6}{15}$