
is equivalent to both

and ≈ 0.833 repeated. In order to find out the fraction that is equivalent to

you need to reduce the fraction with 2. Once you do this you're left with

,, making it the equivalent fraction. In order to find out a fractions equivalent decimal,, you need to divide the top of the fraction (10) by the bottom of the fraction (12) in which case you would get ≈ 0.8333333 repeated.
Let me know if you have any further questions.
:)