Answer:
14 of these device have to fill and pour in order to add enough sugar.
Explanation:
Given:
The recipe calls for 4 2/3 cups of sugar. The only measuring device which measures 1/3 cup.
Now, to get how many of this device have to fill and pour in order to add enough sugar.
First we convert the quantity in improper fraction from mixed :

According to question:
We divide 14/3 cups of sugar by 1/3 measuring cup to get quantity of device to be fill and pour:


Now, by evaluating we get:

Therefore, 14 of these device have to fill and pour in order to add enough sugar.