Students go boating. There are 28 male students and 28 female students. Every 4 students take a boat. How many boats should be rented in total?
同学们去划船，男同学有28人，女同学也有28人，每4人坐一条船，一共需租多少条船？
<gadget id="calculator">28 + 28</gadget>
<output>56</output>

<gadget id="calculator">56 / 4</gadget>
<output>14</output>

<result>14</result>