There are 123 boys and 129 girls in the fourth grade. For every group of 14 people to participate in labor, how many groups should be divided into total?
四年级有男生123人，女生129人．每14人一组去参加劳动，一共要分多少组？
<gadget id="calculator">123 + 129</gadget>
<output>252</output>

<gadget id="calculator">252 / 14</gadget>
<output>18</output>

<result>18</result>