12.5*0.4/12.5*0.4=how much
12.5*0.4/12.5*0.4=多少
<gadget id="calculator">0.4 / 12.5</gadget>
<output>0.032</output>

<gadget id="calculator">12.5 * 0.032 * 0.4</gadget>
<output>0.16</output>

<result>0.16</result>