Calculation: (2/(1*3))+(2/(3*5))+(2/(5*7))+…+(2/(99*101)).
计算：(2/(1*3))+(2/(3*5))+(2/(5*7))+…+(2/(99*101))．
<gadget id="calculator">1 / 101</gadget>
<output>1/101 = around 0.009901</output>

<gadget id="calculator">1 - (1/101)</gadget>
<output>100/101 = around 0.990099</output>

<result>100/101 = around 0.990099</result>