0.0192/0.004/(1/5)*20.
0.0192/0.004/(1/5)*20．
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">0.0192 / 0.004 / (1/5)</gadget>
<output>24</output>

<gadget id="calculator">24 * 20</gadget>
<output>480</output>

<result>480</result>