(1-(3/(2*4)))*(1-(3/(3*5)))*(1-(3/(4*6)))*…*(1-(3/ (9*11)))=how much.
(1-(3/(2*4)))*(1-(3/(3*5)))*(1-(3/(4*6)))*…*(1-(3/(9*11)))=多少．
<gadget id="calculator">2 * 4</gadget>
<output>8</output>

<gadget id="calculator">5 / 8</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">3 * 5</gadget>
<output>15</output>

<gadget id="calculator">12 / 15</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">4 * 6</gadget>
<output>24</output>

<gadget id="calculator">21 / 24</gadget>
<output>7/8 = around 0.875</output>

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

<gadget id="calculator">32 / 35</gadget>
<output>32/35 = around 0.914286</output>

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

<gadget id="calculator">45 / 48</gadget>
<output>15/16 = around 0.9375</output>

<gadget id="calculator">7 * 9</gadget>
<output>63</output>

<gadget id="calculator">60 / 63</gadget>
<output>20/21 = around 0.952381</output>

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

<gadget id="calculator">77 / 80</gadget>
<output>77/80 = around 0.9625</output>

<gadget id="calculator">9 * 11</gadget>
<output>99</output>

<gadget id="calculator">96 / 99</gadget>
<output>32/33 = around 0.969697</output>

<gadget id="calculator">(5/8) * (4/5) * (7/8) * (32/35) * (15/16) * (20/21) * (77/80) * (32/33)</gadget>
<output>1/3 = around 0.333333</output>

<result>1/3 = around 0.333333</result>