(1/3)+0.25=how much.
(1/3)+0.25=多少．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">(1/3) + 0.25</gadget>
<output>0.583333</output>

<result>0.583333</result>