The question is asking for 2/3 times 3/4, or the 2/3 that they ate, out of the 3/4 total. This as an equation is
\(\frac{2}{3}*\frac{3}{4}\)
You may notice the 3 on the top and on the bottom. Those will cancel out, leaving you with \(\frac{2}{4}\), or \(\frac{1}{2}\)
\(\frac{1}{2}\)
