Is Zero a Rational Number?
Answer – Yes, zero (0) is a rational number. It is also a whole number, a real number and an integer.
Explanation:
A rational number is one which can be represented as a fraction in which the denominator is not zero. Since the number 0 can also be presented as the fraction , it is a rational number.
Integers are numbers with no decimal parts. This set also includes zero.
Zero is also included in the set of whole numbers (which is defined as all natural numbers plus zero).
All these groups of numbers are themselves subsets in the larger set of real numbers. Thus, since zero is included in them, it is also a real number.
