Calculation: (1/(1*2))+(1/(2*3))+(1/(3*4))+(1/(4*5))+…+(1/(2005* 2006))=
计算：(1/(1*2))+(1/(2*3))+(1/(3*4))+(1/(4*5))+…+(1/(2005*2006))=
<gadget id="calculator">1 / 2_006</gadget>
<output>1/2_006 = around 0.000499</output>

<gadget id="calculator">1 - (1/2_006)</gadget>
<output>2_005/2_006 = around 0.999501</output>

<result>2_005/2_006 = around 0.999501</result>