As you can see, in the figure above each bold rectangle represents 1, and each 1 is divided into three parts. If you count the thirds represented, you will find find the answer to part (a).
Try drawing a diagram as modeled in part (a). It may help to know that there are 4 one-fourths in 1. Can you find how many are in 5?
There are 20 fourths in 5.
Your rectangles might look something like the ones above. Can you count the one-sixths in the three rectangles?
The quotient is 30.