The three of Xiaohua's family shared 126 tons of tap water in the first half of the year. How many tons per person per month on average?
小华家三人上半年共用自来水126吨，平均每人每月用水多少吨？
<gadget id="calculator">126 / 3 / 6</gadget>
<output>7</output>

<result>7</result>