Answer:
1 1/3
Explanation:
To answer this problem, you need to see how much bigger the sides are in the bigger shape than the smaller one. The side on the left is 12 boxes for the small and 16 for the big. 12 x 1/3 = 4. Now, we can add 4 to 12 and we get 16. If you do the same with the other sides, we get 6 x 1 1/3 = 8 and 3 x 1 1/3 = 4.