Calculation: (1/4)+(2/4)+(3/4)+(4/4)+(5/4)+...+(40/4)=how much.
计算：(1/4)+(2/4)+(3/4)+(4/4)+(5/4)+…+(40/4)=多少．
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 + 40</gadget>
<output>41</output>

<gadget id="calculator">41 * 20</gadget>
<output>820</output>

<gadget id="calculator">(1/4) * 820</gadget>
<output>205</output>

<result>205</result>