Counting your money would be one way.
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it depends what is meant by everyday life but I round them up when I don't need an exact number and if it is easier to remember whole numbers
Everyday life is frequently irrational.
Everywhere, you say I want one apple, or twocookies; both rational numbers.
Every time you think or say a positive, whole, or fractioned, number, you use positive rational numbers. You might say that you are 19 years old; or that yor birthday is on January 5th etc.
use in counting