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Q: A decimal number is an irrational number?

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No.

It is the decimal approximation to the value of the irrational number.

No, it is a rational.

The difference is that rational numbers stay with the same numbers. Like the decimal 1.247247247247... While an irrational number is continuous but does not keep the same numbers. Like the decimal 1.123456789...

It is a rational number because it is a terminating decimal number

Related questions

When a decimal can't be expressed as a fraction then it is an irrational number.

Pi is an irrational number

A decimal rational number can be expressed as a fraction A decimal irrational number can not be expressed as a fraction

If it is a terminating or recurring decimal then it is not irrational. If it is an infinite, non-recurring decimal, it is irrational.

An irrational number has a decimal representation that is non-terminating and non-repeating.

It is a rational number.

An irrational number is a number that has no definite end and a terminating number is a number that has a definite end. So this means that a decimal that is terminating cannot be irrational.

No. If you write an irrational number as a decimal, it will have an infinite number of decimal digits that don't repeat periodically.

No.

No it is not.

No.

It is the decimal approximation to the value of the irrational number.

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