A car travels the whole distance (2/3) in 6 hours. How many hours will it take to complete the journey at this speed?
一辆汽车6小时行了全程的(2/3)，照这样的速度，行完全程需要多少小时．
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">6 / (2/3)</gadget>
<output>9</output>

<result>9</result>