Calculation: (2/(4*6))+(2/(6*8))+(2/(8*10))+(2/(10*12))+(2/(12*14) ).
计算：(2/(4*6))+(2/(6*8))+(2/(8*10))+(2/(10*12))+(2/(12*14))．
<gadget id="calculator">4 * 6</gadget>
<output>24</output>

<gadget id="calculator">2 / 24</gadget>
<output>1/12 = around 0.083333</output>

<gadget id="calculator">6 * 8</gadget>
<output>48</output>

<gadget id="calculator">2 / 48</gadget>
<output>1/24 = around 0.041667</output>

<gadget id="calculator">8 * 10</gadget>
<output>80</output>

<gadget id="calculator">2 / 80</gadget>
<output>1/40 = around 0.025</output>

<gadget id="calculator">10 * 12</gadget>
<output>120</output>

<gadget id="calculator">2 / 120</gadget>
<output>1/60 = around 0.016667</output>

<gadget id="calculator">12 * 14</gadget>
<output>168</output>

<gadget id="calculator">2 / 168</gadget>
<output>1/84 = around 0.011905</output>

<gadget id="calculator">(1/12) + (1/24) + (1/40) + (1/60) + (1/84)</gadget>
<output>5/28 = around 0.178571</output>

<result>5/28 = around 0.178571</result>