Teacher Li took the train from Shanghai to Beijing, and traveled the whole journey in 10 hours (5/6). At this speed, how many hours does it take to travel from Shanghai to Beijing?
李老师乘火车从上海去北京，10小时行了全程的(5/6)．照这样的速度，从上海到北京需要多少小时？
<gadget id="calculator">5 / 6</gadget>
<output>5/6 = around 0.833333</output>

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

<result>12</result>