If you have 3/5 marbles and you got 4/3more marbles then all you have to do is:3/5 x 3/3 and get 9/15.For 4/3 you multiply 4/3 x 5/5 and get 20/15.You simplify this and get 1 5/15.Now all you do is add them and get 1 14/15. Hope this helped you :-).
A tringular prism. The picture attached shows it- the 3 rectangular faces are the sides and bottom; the 2 triangular are the front and back. Hope this helps!!
