It's a false question because 0.9999... never occurs from division of any two integers, and therefore is a decimal representation of a fraction that does not exist. (You could get 0.9999.... from 9/9 if you fuck up the first step of long division, and pretend that there are zero nines in 9.) You have to bullshit about rational numbers having to equal a limit, or pretend that you start with 1 and infinitely partition it in ever smaller parts in order to compensate for the fuckup.