(7/18)*(5/11)+(7/18)/(11/5).
(7/18)*(5/11)+(7/18)/(11/5)．
<gadget id="calculator">7 / 18</gadget>
<output>7/18 = around 0.388889</output>

<gadget id="calculator">5 / 11</gadget>
<output>5/11 = around 0.454545</output>

<gadget id="calculator">(7/18) * (5/11)</gadget>
<output>35/198 = around 0.176768</output>

<gadget id="calculator">11 / 5</gadget>
<output>11/5 = around 2.2</output>

<gadget id="calculator">(7/18) / (11/5)</gadget>
<output>35/198 = around 0.176768</output>

<gadget id="calculator">(35/198) + (35/198)</gadget>
<output>35/99 = around 0.353535</output>

<result>35/99 = around 0.353535</result>