(2.4-(0.2+(1/3))*4.5)/(7/12).
(2.4-(0.2+(1/3))*4.5)/(7/12)．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">0.2 + (1/3)</gadget>
<output>0.533333</output>

<gadget id="calculator">0.533333 * 4.5</gadget>
<output>2.399998</output>

<gadget id="calculator">2.4 - 2.399998</gadget>
<output>0.000002</output>

<gadget id="calculator">7 / 12</gadget>
<output>7/12 = around 0.583333</output>

<gadget id="calculator">0.000002 / (7/12)</gadget>
<output>0.000003</output>

<result>0.000003</result>