(39/5)/(32*(1-(5/8))+(18/5)).
(39/5)/(32*(1-(5/8))+(18/5))．
<gadget id="calculator">39 / 5</gadget>
<output>39/5 = around 7.8</output>

<gadget id="calculator">5 / 8</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">1 - (5/8)</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">32 * (3/8)</gadget>
<output>12</output>

<gadget id="calculator">18 / 5</gadget>
<output>18/5 = around 3.6</output>

<gadget id="calculator">12 + (18/5)</gadget>
<output>78/5 = around 15.6</output>

<gadget id="calculator">(39/5) / (78/5)</gadget>
<output>1/2 = around 0.5</output>

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