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Question

Give one example each to the following statements.
A number which is natural number, whole number, integer and rational number.


Solution

Natural numbers are all numbers $1, 2, 3, 4…$ They are the numbers you usually count and they will continue on into infinity.
Whole numbers are all natural numbers including $0$ e.g.$ 0, 1, 2, 3, 4…$
Integers include all whole numbers and their negative counterpart e.g. $…-4, -3, -2, -1, 0,1, 2, 3, 4,…$
All integers belong to rational numbers. A rational number is a number$\dfrac{a}{b}$ where $b\neq 0$
Where $a$ and $b$ are both integers.
Here $4$ is a natural number, whole number, integer and rational number as $4=\dfrac{4}{1}$
Thus, all positive numbers fulfil the above statement.

Mathematics

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