2(1/2)+2(1/2)*(8/35)-1(4/5)/6(3/10)-3(2/7)=how much.
2(1/2)+2(1/2)*(8/35)-1(4/5)/6(3/10)-3(2/7)=多少．
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<result>1/2 = around 0.5</result>