Father and Daughter

Finally!

One for the number crunchers we have around here. Ready for today's Brain Bender? (From the handy dandy discount MENSA calendar...)

-----------------

Frank is twice as old as his daughter Amanda. Twelve years ago, Frank was three times as old as Amanda. Twelve years from now, Amanda will be three-fifths of her father's age.

How old are Frank and Amanda now?

-------------------

Huh. I have nary a clue - but I'll bet you do! And like always, the answers will be found later in the comments. See you then!