How do I do this? Add:

M^2 3P 5
—— - -—- - ————-
4 CX 4C^2X

I have no idea how to do this. You are supposed to add this and have a least common denominator. I don’t even know,
PLEASE HELP. My teacher sucks.

(^ = squared)

Ashley spent half of her lunch money on a turkey sandwich. then she spent two-thirds of the money she had left on a bottle of juice and the rest of the money on a cookie. if the cookie cost $.75, how much lunch money did ashley have to start with?