What is ##1 2/3## written as a decimal and a percent?

We can indicate this as ##1.dot6 or 166 2/3%##

FIRST ##1 2/3## can be written as ##5/3##

This is how you can write it if you want it to come to a stop ##1.6666666666666666666666666666667##

but it does actually keep recurring to infinity.

We can indicate this as ##1.dot6##

SO now you want it to be expressed as a %.

Basically you can call it ##166.7##% (it is actually

##166.66666666666666666666666666667%)## but it would go on for ever.

A more accurate way of giving the percent is as ##166 2/3%##

This has not been rounded and is an exact amount.