The students go rowing. There are 28 boys and 26 girls. Each boat is limited to 9 people. How many boats do they need?
同学们去划船，男生有28人，女生有26人，每条船限乘9人，他们需要几条船？
<gadget id="calculator">28 + 26</gadget>
<output>54</output>

<gadget id="calculator">54 / 9</gadget>
<output>6</output>

<result>6</result>