Question

Is 2 a rational number?

Answer 1

Hint: To solve this problem we should have the knowledge of rational numbers only. Definition of rational numbers is just sufficient to get the answer to this question.

Complete step by step answer:
As we know that there are various types of numbers.
Among them, rational numbers are one of the types.
As we know that rational numbers are those numbers that can be expressed in the \[\dfrac{p}{q}\] form. Such that q is a non-zero integer number.
Now let’s check whether we can express 2 in the above form or not?
So we can write 2 as \[\dfrac{2}{1}\] so that we get \[\dfrac{p}{q}\] form.
Such that q is a non-zero integer number. And p is integer.
Thus we can say 2 is a rational number.

Note:
Note that, rational numbers are just expressed in a fraction form with a non zero denominator. We can also say that 0 is a rational number because we can express 0 as \[\dfrac{0}{1}\]. Natural numbers are those starting from 1 and upto infinity. And there are irrational numbers also ; those numbers that cannot be expressed in the \[\dfrac{p}{q}\] form.