Calculation: 1/3+(1/3)/5+(1/5)/7+(1/7)/9+(1/9)/11+(1/11)/13+(1/13 )/15+(1/15)/17.
计算：1/3+(1/3)/5+(1/5)/7+(1/7)/9+(1/9)/11+(1/11)/13+(1/13)/15+(1/15)/17．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">(1/3) / 5</gadget>
<output>1/15 = around 0.066667</output>

<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">(1/5) / 7</gadget>
<output>1/35 = around 0.028571</output>

<gadget id="calculator">1 / 7</gadget>
<output>1/7 = around 0.142857</output>

<gadget id="calculator">(1/7) / 9</gadget>
<output>1/63 = around 0.015873</output>

<gadget id="calculator">1 / 9</gadget>
<output>1/9 = around 0.111111</output>

<gadget id="calculator">(1/9) / 11</gadget>
<output>1/99 = around 0.010101</output>

<gadget id="calculator">1 / 11</gadget>
<output>1/11 = around 0.090909</output>

<gadget id="calculator">(1/11) / 13</gadget>
<output>1/143 = around 0.006993</output>

<gadget id="calculator">1 / 13</gadget>
<output>1/13 = around 0.076923</output>

<gadget id="calculator">(1/13) / 15</gadget>
<output>1/195 = around 0.005128</output>

<gadget id="calculator">1 / 15</gadget>
<output>1/15 = around 0.066667</output>

<gadget id="calculator">(1/15) / 17</gadget>
<output>1/255 = around 0.003922</output>

<gadget id="calculator">(1/3) + (1/15) + (1/35) + (1/63) + (1/99) + (1/143) + (1/195) + (1/255)</gadget>
<output>8/17 = around 0.470588</output>

<result>8/17 = around 0.470588</result>