Is #0.99999999# a rational, irrational number, natural, whole or integer?
If it stops after 8 decimal places then it is a rational number,
If it is a an infinitely recurring patten of
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