Calculation: (1/3)+(1/15)+(1/35)+…+(1/399)+(1/483)=
计算：(1/3)+(1/15)+(1/35)+…+(1/399)+(1/483)=
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 / 23</gadget>
<output>1/23 = around 0.043478</output>

<gadget id="calculator">1 - (1/23)</gadget>
<output>22/23 = around 0.956522</output>

<gadget id="calculator">(1/2) * (22/23)</gadget>
<output>11/23 = around 0.478261</output>

<result>11/23 = around 0.478261</result>