today we were shown a method of converting recuring decimal places to common fractions.

eg. 0.3 recuring=n=0.33333...

then 10n=3.33...

10n-n=9n

9n=3

n=3/9=1/3 (first time i've put maths into the internet so i hope you can all read the mess i just put up)

so if thats correct then for the case n=0.9 recuring...

n=0.99999...

10n=9.99999...

10n-n=9n

9n=9

n=9/9=1

0.9 recuring equal to 1????