Calculation: 5+(5/(1*2))+(5/(2*3))+(5/(3*4))+...+(5/(99*100)).
计算：5+(5/(1*2))+(5/(2*3))+(5/(3*4))+…+(5/(99*100))．
<gadget id="calculator">1 / 100</gadget>
<output>1/100 = around 0.01</output>

<gadget id="calculator">2 - (1/100)</gadget>
<output>199/100 = around 1.99</output>

<gadget id="calculator">5 * (199/100)</gadget>
<output>199/20 = around 9.95</output>

<result>199/20 = around 9.95</result>