Joshua is sharing half of a pizza with three friends, which means there are four people in total (Joshua and his three friends). To find the fraction of a whole pizza that each person will get, we can set up the expression as follows:
- The total amount of pizza they are sharing is \( \frac{1}{2} \) (half of a pizza).
- There are 4 people sharing this pizza.
To find the fraction each person gets, we divide the total amount of pizza by the number of people:
\[ \frac{1/2}{4} \]
This expression can be simplified:
\[ \frac{1/2}{4} = \frac{1}{2} \times \frac{1}{4} = \frac{1}{8} \]
Therefore, each person will get \( \frac{1}{8} \) of a whole pizza. The expression that can be used to find how much each person will get is:
\[ \frac{1/2}{4} \]