Xiao Ming (2/3) walks 2km in an hour, how many kilometers does he walk in an average hour?
小明(2/3)小时走了2km，他平均每小时走多少千米？
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

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

<result>3</result>