What Is The Need Of Integers And Rational Numbers In Our Life?

Integers and/or rational numbers are used to represent any and every number we write in numeric form in our lives. Without them, there is no pay, no commerce, no engineering, no construction, no production of any sort. Take away any use of numbers, and Western society would completely collapse.

We can represent and talk about transcendental numbers, such as Pi, or irrational numbers, such as √3, but as soon as we write 3.14 or 1.73 we are writing rational numbers.

You don't need to call them integers or rational numbers. You don't need to know their names. But you do need to use them. Think vending machines, radio frequencies, CD track numbers, time, GPS coordinates, telephone numbers, ...