0.999....=1

[Platina]

Teeqoz said:

 

Platina said:
Math doesn't work that way

though it does look neat

[1/9]*9 = 1, not 0.999...                                     

Actually math does work that way. 

And 1/9*9=1=0.999...

1/9=0.111... you agree on this, right?

and 0.111...*9=0.999... you agree on this as well, right?

Now, since 0.111... = 1/9, and 0.111....*9=0.999... then 0.999....=1

You're working with infinite decimals so it's not the same. Feel free to write 0.99999.. on your math exam though!