(2005/2006)-(1/2006)=how much.
(2005/2006)-(1/2006)=多少．
<gadget id="calculator">2_005 / 2_006</gadget>
<output>2_005/2_006 = around 0.999501</output>

<gadget id="calculator">1 / 2_006</gadget>
<output>1/2_006 = around 0.000499</output>

<gadget id="calculator">(2_005/2_006) - (1/2_006)</gadget>
<output>1_002/1_003 = around 0.999003</output>

<result>1_002/1_003 = around 0.999003</result>