What I want to do, which sounds simple in my head, is input an amount of time into a cell, but have it display as its decimal equivalent. So, if I put 2 hours 30 minutes into cell A2 in the format of '2:30', I would like it to convert that to '2.50' and display it in cell A2. The reasons I am looking for this to happen, is so the displayed 2.50 can be used in other equations throughout the sheet without this funky time thing Excel seems to have.

I am sorry if this question has been answered already. I did try searching, but I must be using wrong keywords. Any advice is greatly appreciated.