If ((a)/12)=(3/4), then a=how much
如果((a)/12)=(3/4)，那么a=多少
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">12 * (3/4)</gadget>
<output>9</output>

<result>9</result>