How do I solve this?

Question

2
{2/3 } / 4/5 / 1/3

{4/9} / 4/4 / 1/3
How do I cross multily the numbers?

Is the (2/3) supposed to be squared?
Is the (4/5)/(1/3) in a denominator below (2/3) ?

You need to use more parentheses or brackets to clarify the order of operations.

(4/5)/(1/3) is the same thing as (4/5)x(3), which is 12/5. Use that as the denominator.

In your second question, you can always replace 4/4 with a 1. That leaves you with
(4/9)/ [1/(1/3)] = (4/9)/3 = 4/27