Xiaohua's family used 10 tons of water in December last year, saving (1/6) compared to November. How many tons did Xiaohua's family use in November last year?
小华家去年十二月份用水10吨，比十一月份节约了(1/6)．小华家去年十一月份用水多少吨？
<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">1 - (1/6)</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">10 / (5/6)</gadget>
<output>12</output>

<result>12</result>