(324-285)*12/26．
(324-285)*12/26．
<gadget id="calculator">324 - 285</gadget>
<output>39</output>

<gadget id="calculator">12 / 26</gadget>
<output>6/13 = around 0.461538</output>

<gadget id="calculator">39 * (6/13)</gadget>
<output>18</output>

<result>18</result>