(1+(1/2))*(1-(1/2))*(1+(1/3))*(1-(1/3))*...*(1+(1/100) )*(1-(1/100))
(1+(1/2))*(1-(1/2))*(1+(1/3))*(1-(1/3))*…*(1+(1/100))*(1-(1/100))
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">101 / 100</gadget>
<output>101/100 = around 1.01</output>

<gadget id="calculator">(1/2) * (101/100)</gadget>
<output>101/200 = around 0.505</output>

<result>101/200 = around 0.505</result>