How to Find Equivalent Capacitance?

[aimee3]

Homework Statement

Hi, i was working on finding the equivalent capacitance, but I'm not sure if I'm doing it right
This is the figure : http://i8.photobucket.com/albums/a8/ryu0919/physicsproblem2.jpg?

Homework Equations

Find the equivalent capacitance?

The Attempt at a Solution

I thought of adding the top in series, and i got 1/C = 1/2 + 1/1 = 3/2 so C = 2/3
on the bottom, i added them in series too and i got 1/C = 1/3 + 1/5 = 8/15 so C = 15/8
then i thought i could add all of them in parallel and i added 2/3+15/8+4 = 20/3

but i don't know which one i am supposed to add first, because 1 and 3 are in parallel, and 2 and 5 are also in parallel, so do i add those first? I don't get the order..

 

[zgozvrm]

Do a search for delta-wye transformations...