(10/6)+(10/24)+(10/60)+(10/120)+(10/210)+(10/336)+(10/504)+(10/720).
(10/6)+(10/24)+(10/60)+(10/120)+(10/210)+(10/336)+(10/504)+(10/720)．
<gadget id="calculator">10 / 6</gadget>
<output>5/3 = around 1.666667</output>

<gadget id="calculator">10 / 24</gadget>
<output>5/12 = around 0.416667</output>

<gadget id="calculator">10 / 60</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">10 / 120</gadget>
<output>1/12 = around 0.083333</output>

<gadget id="calculator">10 / 210</gadget>
<output>1/21 = around 0.047619</output>

<gadget id="calculator">10 / 336</gadget>
<output>5/168 = around 0.029762</output>

<gadget id="calculator">10 / 504</gadget>
<output>5/252 = around 0.019841</output>

<gadget id="calculator">10 / 720</gadget>
<output>1/72 = around 0.013889</output>

<gadget id="calculator">(5/3) + (5/12) + (1/6) + (1/12) + (1/21) + (5/168) + (5/252) + (1/72)</gadget>
<output>22/9 = around 2.444444</output>

<result>22/9 = around 2.444444</result>