Yes, and when I say 1/3, I mean 0.3333333333333333333333333333333333333333333333333333... and so on. Unfortunately, I can't tell you exactly, since we're using decimal.
As a workaround you simply approximate to a significant figure past any other values in your calculation. So in practice it doesn't really matter that there's no exact base-10 representation as a decimal because there's always an approximation that introduces no error.