((3.6)/(0.6))=((1.2)/(x)).
((3.6)/(0.6))=((1.2)/(x))．
<gadget id="calculator">1.2 * 0.6</gadget>
<output>0.72</output>

<gadget id="calculator">0.72 / 3.6</gadget>
<output>0.2</output>

<result>0.2</result>