If Angie and her friends ate 3/4 of a pizza, that means that 1/4 is left.
Joe ate 2/3 of 1/4 of a pizza. To find out how much he ate, multiply 1/4 by 2/3.
\(\frac{1}{4}* \frac{2}{3}= \frac{2}{12}\) because you multiply fractions straight across.
Your answer is 2/12 or 1/6 of the pizza