(2/3)/(((2/3)+(1/2))+((6/7)-(6/7))-(5/6)).
(2/3)/(((2/3)+(1/2))+((6/7)-(6/7))-(5/6))．
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

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

<gadget id="calculator">(2/3) + (1/2)</gadget>
<output>7/6 = around 1.166667</output>

<gadget id="calculator">6 / 7</gadget>
<output>6/7 = around 0.857143</output>

<gadget id="calculator">(6/7) - (6/7)</gadget>
<output>0</output>

<gadget id="calculator">5 / 6</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">0 - (5/6)</gadget>
<output>-5/6 = around -0.833333</output>

<gadget id="calculator">(7/6) + (-5/6)</gadget>
<output>1/3 = around 0.333333</output>

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

<result>2</result>