Get students working in partners to practice their equivalent fractions skills. Each partner reduces fractions in a given column. Each row should reduce to the same fraction. No need to micromanage each individual answer because the students should always be able to check each other's work!
I love using row games in my classroom. It almost eliminates the constant running around you have to do during a class activity because this activity grades itself. The students should know whether or not they're correct without you checking each individual answer.