If (2X-1)/6=0 then X=how much.
如果(2X-1)/6=0那么X=多少．
<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">(1/6) + 0</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">2 / 6</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">(1/6) / (1/3)</gadget>
<output>1/2 = around 0.5</output>

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