(0.5*0.8+2.8)/(2.5*1.6)
(0.5*0.8+2.8)/(2.5*1.6)
<gadget id="calculator">0.5 * 0.8</gadget>
<output>0.4</output>

<gadget id="calculator">0.4 + 2.8</gadget>
<output>3.2</output>

<gadget id="calculator">2.5 * 1.6</gadget>
<output>4</output>

<gadget id="calculator">3.2 / 4</gadget>
<output>0.8</output>

<result>0.8</result>