How do you change a repeating decimal into a fraction?
Try this video
https://www.khanacademy.org/math/algebra/solving-linear-equations-and-inequalities/conv_rep_decimals/v/coverting-repeating-decimals-to-fractions-1
I haven't looked at it but there is a lot of great clips on you tube.
There are also a lot of other great resources out there - just google what you want. :)