1.8*(24.15/(10.04-6.54)).
1.8*(24.15/(10.04-6.54))．
<gadget id="calculator">10.04 - 6.54</gadget>
<output>3.5</output>

<gadget id="calculator">24.15 / 3.5</gadget>
<output>6.9</output>

<gadget id="calculator">1.8 * 6.9</gadget>
<output>12.42</output>

<result>12.42</result>