To walk the same distance, A takes 2 hours and B takes 3 hours, how much faster is A's speed than B's speed?
走同一段路，甲要2小时，乙要3小时，甲的速度比乙的速度快多少．
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

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

<gadget id="calculator">(1/6) / (1/3)</gadget>
<output>1/2 = around 0.5</output>

<result>1/2 = around 0.5</result>