LO: add and subtract fractions with easy denominators

Kahoot to test understanding of equivalent fractions, 10 questions

create.kahoot.it/share/fractions-simple-equivalent/8bf7906c-c902-43b2-89eb-b9975a078a18

Discuss/few egs adding/subtracting fractions with matching denominators then egs for qu's below:

Extension questions (need to simplify some answers)