(1-(1/15))+(1-(1/35))+(1-(1/63))+(1-(1/99))+(1-(1/143))+ (1-(1/195))+(1-(1/255))+(1-(1/323))+(1-(1/399))+(1-(1/483))= How many.
(1-(1/15))+(1-(1/35))+(1-(1/63))+(1-(1/99))+(1-(1/143))+(1-(1/195))+(1-(1/255))+(1-(1/323))+(1-(1/399))+(1-(1/483))=多少．
<gadget id="calculator">1 / 15</gadget>
<output>1/15 = around 0.066667</output>

<gadget id="calculator">1 - (1/15)</gadget>
<output>14/15 = around 0.933333</output>

<gadget id="calculator">1 / 35</gadget>
<output>1/35 = around 0.028571</output>

<gadget id="calculator">1 - (1/35)</gadget>
<output>34/35 = around 0.971429</output>

<gadget id="calculator">1 / 63</gadget>
<output>1/63 = around 0.015873</output>

<gadget id="calculator">1 - (1/63)</gadget>
<output>62/63 = around 0.984127</output>

<gadget id="calculator">1 / 99</gadget>
<output>1/99 = around 0.010101</output>

<gadget id="calculator">1 - (1/99)</gadget>
<output>98/99 = around 0.989899</output>

<gadget id="calculator">1 / 143</gadget>
<output>1/143 = around 0.006993</output>

<gadget id="calculator">1 - (1/143)</gadget>
<output>142/143 = around 0.993007</output>

<gadget id="calculator">1 / 195</gadget>
<output>1/195 = around 0.005128</output>

<gadget id="calculator">1 - (1/195)</gadget>
<output>194/195 = around 0.994872</output>

<gadget id="calculator">1 / 255</gadget>
<output>1/255 = around 0.003922</output>

<gadget id="calculator">1 - (1/255)</gadget>
<output>254/255 = around 0.996078</output>

<gadget id="calculator">1 / 323</gadget>
<output>1/323 = around 0.003096</output>

<gadget id="calculator">1 - (1/323)</gadget>
<output>322/323 = around 0.996904</output>

<gadget id="calculator">1 / 399</gadget>
<output>1/399 = around 0.002506</output>

<gadget id="calculator">1 - (1/399)</gadget>
<output>398/399 = around 0.997494</output>

<gadget id="calculator">1 / 483</gadget>
<output>1/483 = around 0.00207</output>

<gadget id="calculator">1 - (1/483)</gadget>
<output>482/483 = around 0.99793</output>

<gadget id="calculator">(14/15) + (34/35) + (62/63) + (98/99) + (142/143) + (194/195) + (254/255) + (322/323) + (398/399) + (482/483)</gadget>
<output>680/69 = around 9.855072</output>

<result>680/69 = around 9.855072</result>