If a car travels from point A to point B in 2 hours (2/5), at this speed, how many hours will it take to reach point B?
一辆汽车从A地到B地，2小时行完全程的(2/5)，照这样的速度，再行驶多少小时可到B地？
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1 - (2/5)</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">(2/5) / 2</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">(3/5) / (1/5)</gadget>
<output>3</output>

<result>3</result>