# Is #0.99999999# a rational, irrational number, natural, whole or integer?

##### 1 Answer

Jun 30, 2015

#### Answer:

If it stops after 8 decimal places then it is a rational number,

equal to

If it is a an infinitely recurring patten of

#### Explanation:

A rational number is any number that can be expressed as

If you are familiar with the 'dot' notation for recurring decimals, then you can write:

If you are not sure this is so, try subtracting:

and see that you get