In the first stage, the set of all integers needs an extension - to the set of rational numbers - to get closure for division (which is the inverse operation to multiplication).
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Extensions are used in integers to denote that they are infinite in number.
What you need to know about integers is that integers is the name for the group of numbers that include whole numbers and negative numbers. But integers DO NOT include fractions.
Integers are very helpful when you are trying to count things, or when you want to tell somebody your age.
lol I need to know this too.
you need to do the same thing as 2 digit integers is really easy