A car travels from A to B in 2 hours (1/3), how many hours will it take to complete the journey?
一辆汽车从甲地开往乙地，2小时行了全程的(1/3)，行完全程还要多少小时．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">(1/3) / 2</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">1 / (1/6)</gadget>
<output>6</output>

<gadget id="calculator">6 - 2</gadget>
<output>4</output>

<result>4</result>