(1/6)+(1/12)+(1/20)+(1/30)+(1/42)+(1/56)+(1/72)+(1/90)+(1 /110)+(1/132)+(1/156)+(1/182)+(1/210)+(1/240)=how much.
(1/6)+(1/12)+(1/20)+(1/30)+(1/42)+(1/56)+(1/72)+(1/90)+(1/110)+(1/132)+(1/156)+(1/182)+(1/210)+(1/240)=多少．
<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

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

<gadget id="calculator">1 / 20</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">1 / 30</gadget>
<output>1/30 = around 0.033333</output>

<gadget id="calculator">1 / 42</gadget>
<output>1/42 = around 0.02381</output>

<gadget id="calculator">1 / 56</gadget>
<output>1/56 = around 0.017857</output>

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

<gadget id="calculator">1 / 90</gadget>
<output>1/90 = around 0.011111</output>

<gadget id="calculator">1 / 110</gadget>
<output>1/110 = around 0.009091</output>

<gadget id="calculator">1 / 132</gadget>
<output>1/132 = around 0.007576</output>

<gadget id="calculator">1 / 156</gadget>
<output>1/156 = around 0.00641</output>

<gadget id="calculator">1 / 182</gadget>
<output>1/182 = around 0.005495</output>

<gadget id="calculator">1 / 210</gadget>
<output>1/210 = around 0.004762</output>

<gadget id="calculator">1 / 240</gadget>
<output>1/240 = around 0.004167</output>

<gadget id="calculator">(1/6) + (1/12) + (1/20) + (1/30) + (1/42) + (1/56) + (1/72) + (1/90) + (1/110) + (1/132) + (1/156) + (1/182) + (1/210) + (1/240)</gadget>
<output>7/16 = around 0.4375</output>

<result>7/16 = around 0.4375</result>