Would you write 9/11 In decimal like 0.818181 ... or write like 0.8181

The answer is 0.818181 ... The number is a repeating decimal, showing a repeating pattern. It doesn't stop. You can try it by doing "9 dividing by 11".

Well is depends what the questions asks you to round it to. If it says "round to the nearest thousands" then you would put it like 0.818. If it says "round to the nearest hundredth" then you would put 0.82.