Xiao Li and Xiao Zhang will install a total of 72 air conditioners this week. If each person installs 6 air conditioners per day, how many days will it take for the two of them to install these air conditioners?
小李和小张这一周一共要安装72台空调，如果每人每天安装6台，他们两人需要多少天才能安装完这些空调？
<gadget id="calculator">72 / 2 / 6</gadget>
<output>6</output>

<result>6</result>