(9/22)+(1/11)/(1/2).
(9/22)+(1/11)/(1/2)．
<gadget id="calculator">9 / 22</gadget>
<output>9/22 = around 0.409091</output>

<gadget id="calculator">1 / 11</gadget>
<output>1/11 = around 0.090909</output>

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">(1/11) / (1/2)</gadget>
<output>2/11 = around 0.181818</output>

<gadget id="calculator">(9/22) + (2/11)</gadget>
<output>13/22 = around 0.590909</output>

<result>13/22 = around 0.590909</result>