(((1/2)+1(3/7)+(5/6))*((4/15)-(3/20)))/(1(14/15)*(11/18) ).
(((1/2)+1(3/7)+(5/6))*((4/15)-(3/20)))/(1(14/15)*(11/18))．
<gadget id="calculator">9 / 22</gadget>
<output>9/22 = around 0.409091</output>

<result>9/22 = around 0.409091</result>