3.14*(1/3)=how much.
3.14*(1/3)=多少．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">3.14 * (1/3)</gadget>
<output>1.046667</output>

<result>1.046667</result>