The worksheets on this page have various types of practice for multiplying fractions. Included are problems that focus on cross-cancelling which is a skill that greatly simplifies the process of reducing fractions in the answer step. Cross cancelling prior to multiplying fractions results in much smaller products which are significantly easier to reduce and turn into proper fractions.
That still leaves the problem of memorizing a string of numbers, and here’s where the magic is. Teach children to skip count to the tune of a simple song. Have you ever wondered why children can learn the lyrics to songs so easily? It is because music can be used as a Mnemonic device, that is a strategy to assist with memorization. If you can associate the numbers with the sounds in a song, the children will not only learn them faster, but retain them much longer than they would memorizing them exclusively through repetition.