Simple maths but i don't understand why (about recurring decimals or repeating)

yeah...basically 0.9999... is the notation of a number that is as close to 1 that it pretty much acts like it is how I see it. 0.999... is equal to 1 for any operation I've tried.

For example
0.333...+0.666...=0.999...
1/3+2/3=3/3=1

if a=b then 3a=3b and that makes 3(0.333...)=3(1/3) which results in 0.999...=1

matt grime