Whole numbers are simply the numbers: 0, 1, 2, 3, 4, 5, ... and so on. Actually whole numbers are natural numbers and zero.
Integers are natural numbers, zero and negative numbers: ...,-5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, ...
Rational numbers that can be made by dividing two integers. For example, [tex]-\dfrac{1}{5},\ \dfrac{10}{2},\ \dfrac{100}{3}, \dots[/tex]
You can see that each whole number is integer number and each integer is a rational number, then
[tex]\text{Whole numbers}\subseteq \text{Integers}\subseteq \text{Rational numbers}[/tex]
