Can someone please help me with 11 and 12

Adam drew two same size rectangles and divided them into the same number of equal parts. he shaded 1/3 of one rectangle and 1/4 of the other rectangle. what is the least number of parts into which both rectangles could be divided into?

What is 32+4 x (16 x 1/2) -2 show your work}

If olu is twice as old as funmi if the sum of their ages is 60 how old is olu