How many cups are two thirds of 3 quarts?

To find two-thirds of 3 quarts, first convert quarts to cups. There are 4 cups in a quart, so 3 quarts is 12 cups (3 quarts x 4 cups/quart). Now, calculate two-thirds of 12 cups, which is 8 cups (12 cups x 2/3). Therefore, two-thirds of 3 quarts is 8 cups.