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Start with the natural numbers, 0, 1, 2, ... .Then add the set of negative numbers: this makes up the integers.

Next add the set of ratios of any two integers (the second being non-zero): this makes up the rational numbers. Note that each one can be represented as a terminating or repeating decimal number (and conversely).

Finally, add the set of all numbers which cannot be expressed as terminating or repeating decimal numbers. This is the set of Irrational Numbers.

The rationals and irrationals, together, make up the set of real numbers.

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โˆ™ 2016-10-10 11:09:03
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Q: What compose real number?
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