13*14*((3/14)+(7/13)-(16/3)-2(2/5))/16/17.
13*14*((3/14)+(7/13)-(16/3)-2(2/5))/16/17．
<gadget id="calculator">19_057 / 4_080</gadget>
<output>1_121/240 = around 4.670833</output>

<result>1_121/240 = around 4.670833</result>