Dishwasher installation isn't terribly ... If necessary, turn the elbow on the dishwasher slightly with a wrench to align it, or gently bend copper lines about eight to 12 inches from the end.

add tee fittings made of the same material. If you don’t want to solder, you can cut the copper water pipe and install a 5/8-in. O.D. compression tee instead (just don’t use them inside walls ...