Answer:
17
Explanation:
Andy has 6 2/3 quarts of juice which is equal to:
quarts
For every quart it is equavilent to 4 cups.
In order to pour cups we can covert the quarts to cups in a ratio of 1:4.
Therefore the number of cups Andy can pour is:

If he must pour 2/3 of a cup he wil pour:

Any will be able to pour 17 of the 2/3 cup servings