Question

the intersection of real numbers and natural numbers is ----------

Answer 1

always rational no. .

Answer 2

The intersection of real numbers and natural numbers is equal to the set of natural numbers.

A set of natural numbers is a subset of the integer numbers so the common elements of the sets are natural numbers.

The natural or counting numbers are { 1,2, 3, 4, 5, ... } . The set of natural numbers is sometimes written as N. There are infinitely many natural numbers.

The integers are the set of real numbers consisting of natural numbers, their additive inverses and zero.  { ....., -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, ..... } . The set of integers is sometimes written as J or Z.