Maths problem Help

In rectangle ABCD, point E is the midpoint of BC
If the area of the quadrilateral ABED is 2/3, what is the area of rectangle ABCD?
The answer is 8/9 but i haven’'t really followed college board’s explanation

If you can just draw this diagram you will see that ABED is 3/4 of ABCD so you can solve this question by writing 3/4 of x = 2/3 so x = 2/3 ×4/3, x = 8/9
I hope you understood.