6*(1/12)-(1/2)χ=(1/2).
6*(1/12)-(1/2)χ=(1/2)．
<gadget id="calculator">1 / 12</gadget>
<output>1/12 = around 0.083333</output>

<gadget id="calculator">6 * (1/12)</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">(1/2) - (1/2)</gadget>
<output>0</output>

<gadget id="calculator">0 / (1/2)</gadget>
<output>0</output>

<result>0</result>