Question

If I ate 4/9 of a box of cereal what is the fraction of the cereal left?

Answer 1

if the whole of a cereal is 1

you ate 4/9

1 - 4/9 = remainder

`1-(4)/(9)`
`(9-4)/(9)=(5)/(9)`
`so\text{ }(5)/(9)\text{ of the cereal is left}`