How many (1/4) hours = (1/12) hours.
(1/4)小时的多少=(1/12)小时．
<gadget id="calculator">1 / 12</gadget>
<output>1/12 = around 0.083333</output>

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">(1/12) / (1/4)</gadget>
<output>1/3 = around 0.333333</output>

<result>1/3 = around 0.333333</result>