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Actually there are more Irrational Numbers than rational numbers.

Most square roots, cubic roots, etc. are irrational (not rational). For example, the square of any positive integer is either an integer or an irrational number.

The numbers e and pi are both irrational. Most expressions that involve those numbers are also irrational.

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Q: Which is a real number that is not a rational number?

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Not necessarily. All rational numbers are real, not all real numbers are rational.

Sometimes. The number '4' is real and rational. The number 'pi' is real but not rational.

A real number dosen't have to be a rational number as a real number can be rational or irrational i.e the root of 2 is irrational and real. So is (pi).

Decimals are real. They can be rational or irrational.

A real number which is not a rational number is an irrational number.

Yes it is, but not every real number is a rational number

Yes. -3 is both rational and real. -3 is an integer. All integers are rational numbers. All rational numbers are real numbers. Thus -3 is a rational number and a real number.

Yes, 34 is a real and rational number

Real number, Rational Number

Every integer is also a rational number and a real number.

Infinitely rarely, a real number is also a rational number. (There are an infinite number of rational numbers, but there are a "much bigger infinity" of real numbers.)

Every rational number.

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