Question

How do you simplify `1/2 + 4/9`?

Answer 1

You first find a common denominator.

Explanation:

I hope you can see that this will be `18`.

`=1/2xx9/9+4/9xx2/2`

(in both cases multiplying by `1` in disguise)

`=(1xx9)/(2xx9)+(4xx2)/(9xx2)=9/18+8/18=17/18`