Joe had 8 ounces of water. He drank 2/3 of his water bottle.

Question

How much did he drink? How much does he have left?

Answer 1

2/3 of 8 ounces is (2/3)*(8) = 16/3 ounces.

If he drank 2/3 of the water, then 1/3 is left. So 1/3 of 8 ounces is (1/3)*(8) = 8/3 ounces.