16.81/(5.9*2-3.6)
16.81/(5.9*2-3.6)
<gadget id="calculator">5.9 * 2</gadget>
<output>11.8</output>

<gadget id="calculator">11.8 - 3.6</gadget>
<output>8.2</output>

<gadget id="calculator">16.81 / 8.2</gadget>
<output>2.05</output>

<result>2.05</result>