This hopefully covers all bases involving fractions, decimals and percentages from simplifying up to converting recurring decimals to fractions and everything in between.
KS3 Maths Curriculum Area
Number Interpret fractions and percentages as operators.
Andy Lutwyche is a purveyor of mathematics and a producer of resources, more of which you can find on his TES shop. You can also follow him on Twitter at @andylutwyche.