MR-516 / 1. problem

The following two sets are given: G = {1, 2, 3; 4, 6, 12} , H = {1, 2, 4, 8, 16}.
Determine the elements of the following two sets: G∩H and H∖G!

G∩H={1,2,4}

H∖G={8,16}