Fraction Arithmetic!

The problems are grouped as easy (left box), medium (middle box), and hard (right box).
All answers are given as fully reduced fractions.
The Help! does not necessarily fully reduce. That's for you to practice!
Click the problem to see the solution.
Click it again to get a new problem.
Click on "Help!" to toggle help.
Click here to hide these instructions.
Don't stress out, just keep practicing!