51.6*((3.4-1.25)*0.4．
51.6*((3.4-1.25)*0.4．
<gadget id="calculator">2.15 * 0.4</gadget>
<output>0.86</output>

<gadget id="calculator">51.6 * 0.86</gadget>
<output>44.376</output>

<result>44.376</result>