To find the total distance that the four friends swim, you can multiply the distance each friend swims by the number of friends.
Each friend swims \( \frac{3}{5} \) of a mile. Since there are 4 friends, you calculate the total distance as follows:
\[ \text{Total distance} = 4 \times \frac{3}{5} = \frac{12}{5} \text{ miles} \]
Now, converting \( \frac{12}{5} \) to a mixed number:
\[ \frac{12}{5} = 2 \frac{2}{5} \text{ miles} \]
Thus, the total distance that they swim is \( 2 \frac{2}{5} \) miles.
The correct response is:
2 and 2 fifths miles