Xiaohong (2/3) walked 4 kilometers in an hour, how many hours does it take her to walk 1 kilometer on average?
小红(2/3)小时走了4千米，她平均走1千米用多少小时．
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">(2/3) / 4</gadget>
<output>1/6 = around 0.166667</output>

<result>1/6 = around 0.166667</result>