Question

Eric earned 60 points on his last tes t.If there were 75 points.what his precent grade.

Answer 1

In this problem, you would just divide your test results by the maximum test points you can get. 
60 divided by 75 is 0.8, which is 80%, which is probably a grade I will never see in my life :P
Hope I helped!

Answer 2

so he got 60/75. let's divide it by 15!
which is then 4/5. and if you multiply that by 2 you have a base of 10!---> 8/10 now that's 80%