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Although infinite in number, they are very much a minor subset of the real numbers.

If A denotes the number cardinality of rational numbers (the size of the set), then the cardinality of Irrational Numbers is 2A.

In mathematics, A is "Aleph-null" but I cannot get this xenophobic browser to accept characters from other languages.

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Q: What is an important detail about rational number?

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The short answer to your question: yes. This is one of the central axioms of math. If you'd like a bit more detail, try researching number theory.

It is a rational number

It is a rational number. It can be written as a fraction.

yes

3.14159 is rational. However, it is often used as an approximation for Ï€, which is irrational. It is important to recognise that the rational number, 3.14159, is only an approximation for Ï€.

Rational numbers are ratios of two integers (the second of which is not zero). They are important if any number needs to be divided into equal parts.

It is a rational number.

1.96 is a rational number

Is 12.05 a rational number or irrational number?

It is a rational number.

you mean is a whole number a rational number? and yes it is and rational number. Any number that can be put in a fraction is a rational number

9.0 is a rational number

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