At the moment we have just started to study fractions for Maths. I have found these websites for the children to have a go at. They might need some help from someone at home. Have fun.
http://www.ixl.com/math/practice/grade-2-identify-the-fraction

http://www.ngfl-cymru.org.uk/vtc/ngfl/ngfl-flash/fractions/fractions.html