When you have the following problems

2 divided by 1/4 and

1/7 divided by 3 my question on this is the following:

The first example would you do 2/1 x 1/4 or would you do 1/2 x 1/4

The second example would you 1/7 x 3/1 or 1/7 x 1/3?

Please explain?

2 divided by 4/4=8

2 times 4/4 = 8/4 = 2

1/7 divided by 3
(1/7) times (1/3) = 1/21