Simple calculations that can be simplified: (1/11)*(1/5)+(10/11)/5.
能简算的简算：(1/11)*(1/5)+(10/11)/5．
<gadget id="calculator">1 / 11</gadget>
<output>1/11 = around 0.090909</output>

<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">(1/11) * (1/5)</gadget>
<output>1/55 = around 0.018182</output>

<gadget id="calculator">10 / 11</gadget>
<output>10/11 = around 0.909091</output>

<gadget id="calculator">(10/11) / 5</gadget>
<output>2/11 = around 0.181818</output>

<gadget id="calculator">(1/55) + (2/11)</gadget>
<output>1/5 = around 0.2</output>

<result>1/5 = around 0.2</result>