A fun way to review some of the basic skills needed for fraction operations.
Writing Equivalent Fractions
Writing Mixed Numbers as Improper Fractions
Writing Improper Fractions as Mixed Numbers
It's an interactive game that has the students split into teams. The students can earn points for their team by correctly answering the questions. The preview only has a few of the questions linked (#1, 6, 11, and 16). It should be enough to give you an idea of how the entire game works. My students love getting to come up to the board and pick a question for their team to try. I have both teams solving the problems because if the original team gets it wrong the other team can steal the question if they have solved it correctly. This would be appropriate for 5th, 6th and 7th grade.