Answer:
1/2 of the juice box
Step-by-step explanation:
We see that Karen has 2/3 of her juice box left. Her brother drinks 3/4 of that leftover 2/3.
First, remember that "of" in mathematics usually means to multiply. Here, since the brother drank 3/4 of the 2/3, we multiply the two:
(3/4) * (2/3) = (3 * 2) / (4 * 3) = 6 / 12 = 1/2
We understand this as 1/2 of the entire thing.
So, Karen's brother drank 1/2 of the juice box.
<em>~ an aesthetics lover</em>
