how do you convert a fraction to a percent if the fraction's equivalent decimal is repeating. For example 2/3.
What you usually do is find the first two numbers after the decimal.
$\displaystyle .6666666...$
So it starts of as,
$\displaystyle 66\%$
But then the other part is,
$\displaystyle .6666666...=\frac{2}{3}$
Thus you attach that to your precent to get,
$\displaystyle \boxed{ 66 \frac{2}{3} \%}$