(11/20)*25*40*(9/25).
(11/20)*25*40*(9/25)．
<gadget id="calculator">11 / 20</gadget>
<output>11/20 = around 0.55</output>

<gadget id="calculator">9 / 25</gadget>
<output>9/25 = around 0.36</output>

<gadget id="calculator">(11/20) * 25 * 40 * (9/25)</gadget>
<output>198</output>

<result>198</result>