(7/12)*(((2/5)+(1/3))/(2/3))/(2/3).
(7/12)*(((2/5)+(1/3))/(2/3))/(2/3)．
<gadget id="calculator">7 / 12</gadget>
<output>7/12 = around 0.583333</output>

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

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

<gadget id="calculator">(2/5) + (1/3)</gadget>
<output>11/15 = around 0.733333</output>

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">(11/15) / (2/3)</gadget>
<output>11/10 = around 1.1</output>

<gadget id="calculator">(11/10) / (2/3)</gadget>
<output>33/20 = around 1.65</output>

<gadget id="calculator">(7/12) * (33/20)</gadget>
<output>77/80 = around 0.9625</output>

<result>77/80 = around 0.9625</result>