(3/(2*5))+(2/(5*7))+(4/(7*11))+(5/(11*16))+(6/(16*22))+ (7/(22*29))+(1/29)=how much.
(3/(2*5))+(2/(5*7))+(4/(7*11))+(5/(11*16))+(6/(16*22))+(7/(22*29))+(1/29)=多少．
<gadget id="calculator">2 * 5</gadget>
<output>10</output>

<gadget id="calculator">3 / 10</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">5 * 7</gadget>
<output>35</output>

<gadget id="calculator">2 / 35</gadget>
<output>2/35 = around 0.057143</output>

<gadget id="calculator">7 * 11</gadget>
<output>77</output>

<gadget id="calculator">4 / 77</gadget>
<output>4/77 = around 0.051948</output>

<gadget id="calculator">11 * 16</gadget>
<output>176</output>

<gadget id="calculator">5 / 176</gadget>
<output>5/176 = around 0.028409</output>

<gadget id="calculator">16 * 22</gadget>
<output>352</output>

<gadget id="calculator">6 / 352</gadget>
<output>3/176 = around 0.017045</output>

<gadget id="calculator">22 * 29</gadget>
<output>638</output>

<gadget id="calculator">7 / 638</gadget>
<output>7/638 = around 0.010972</output>

<gadget id="calculator">1 / 29</gadget>
<output>1/29 = around 0.034483</output>

<gadget id="calculator">(3/10) + (2/35) + (4/77) + (5/176) + (3/176) + (7/638) + (1/29)</gadget>
<output>1/2 = around 0.5</output>

<result>1/2 = around 0.5</result>