Here are some websites where you can play equivalent fractions games:

https://phet.colorado.edu/sims/html/fraction-matcher/latest/fraction-matcher_en.html

http://www.shodor.org/interactivate/activities/EquivFractionFinder/

http://flash.topmarks.co.uk/2509

http://www.bbc.co.uk/bitesize/ks2/maths/number/fractions/play/