What is (1/4) of (1/2) of 4?
4的(1/2)的(1/4)是多少．
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

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

<gadget id="calculator">4 * (1/2) * (1/4)</gadget>
<output>1/2 = around 0.5</output>

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