Here's something to keep in mind: Keep, Change, flip.
Keep 3/8. Change the division sign to multiplcation. And flip 7/16 around. Like this:
3/8 x 16/7 Now it's easyer. Just multiply across.
3 x 16 = 48
8 x 7 =56
= 48/56
3/8 divided by 7/16 = 48/56
Hope this helps!!-Aparri (Keep being smart.) Thanks!