(1/4)+(1/4)+(1/4)+(1/4)=how much
(1/4)+(1/4)+(1/4)+(1/4)=多少
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">(1/4) + (1/4) + (1/4) + (1/4)</gadget>
<output>1</output>

<result>1</result>