Henry ate 3/8 of a pizza for lunch. For dinner, he at 2/3 of what was left from lunch. How much of the whole pizza did he eat for lunch?
To find out how much of the whole pizza Henry ate for lunch, we need to add up the fractions.
Henry ate 3/8 of the pizza for lunch, leaving 5/8 of the pizza remaining.
Then, for dinner, he ate 2/3 of what was left from lunch, which means he ate 2/3 * 5/8 = 10/24 of the whole pizza for dinner.
Adding up what he ate for lunch and dinner, Henry ate 3/8 + 10/24 = 6/24 + 10/24 = 16/24 = 2/3 of the whole pizza.
Therefore, Henry ate 2/3 of the whole pizza for lunch.