Question

write the natural number from 1-10. what fraction of them are prime number.

Answer 1

Natural numbers from 1-10 are 1, 2, 3, 4, 5, 6, 7, 8, 9, 10.

Prime numbers are those numbers which have factors 1 and itself. eg. 2, 3, 5 and 7

Thus fraction of them which are prime = $\frac{4}{10}$ or $\frac{2}{5}$