What is the result of adding 15 times the quotient of 9 divided by 0.45 to 0.81?
9除0.45的商加上0.81的15倍，结果是多少．
<gadget id="calculator">0.45 / 9</gadget>
<output>0.05</output>

<gadget id="calculator">0.81 * 15</gadget>
<output>12.15</output>

<gadget id="calculator">0.05 + 12.15</gadget>
<output>12.2</output>

<result>12.2</result>