The school uses 70 tons of water in October, and saves water in November compared to October (1/5). How many tons of water does the school use in November?
学校十月份用水70吨，十一月份比十月份节约用水(1/5)．十一月份学校用水多少吨？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">70 * (4/5)</gadget>
<output>56</output>

<result>56</result>