car travels from A to B in 2 hours (3/4). At this speed, how many hours will it take to complete the journey.
某车从甲地到乙地，2小时行了全程的(3/4)．照这样的速度，行完全程还要多少小时．
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">(3/4) / 2</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">1 / (3/8)</gadget>
<output>8/3 = around 2.666667</output>

<gadget id="calculator">(8/3) - 2</gadget>
<output>2/3 = around 0.666667</output>

<result>2/3 = around 0.666667</result>