question_answer

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

Answer:

Natural numbers (from 2 to 12) are : 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12.                                                                                                                     The prime numbers out of the above numbers are: 2, 3, 5, 7, 11. They are 5 in number.                      \[\therefore \]      Required ratio \[=\frac{5}{11}\]