According to the regulations of a taxi in a certain city: within 3 kilometers (including 3 kilometers), the starting price is 7 yuan, and for more than 3 kilometers, the fee is 2 yuan and 4 cents per kilometer. One day, Xiao Ming’s family took a taxi to Sun Palace play, a total of 16 yuan and 6 cents. How far is Xiao Ming's house from the Sun Palace?
某市出租车根据规定：3千米以内(含3千米)按起步价7元收费，超过3千米，每千米收费2元4角，有一天，小明一家坐一辆出租车到太阳宫玩，一共付费16元6角．小明家离太阳宫多远？
<gadget id="calculator">6 / 10</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">16 + (3/5)</gadget>
<output>83/5 = around 16.6</output>

<gadget id="calculator">(83/5) - 7</gadget>
<output>48/5 = around 9.6</output>

<gadget id="calculator">4 / 10</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">2 + (2/5)</gadget>
<output>12/5 = around 2.4</output>

<gadget id="calculator">(48/5) / (12/5)</gadget>
<output>4</output>

<gadget id="calculator">4 + 3</gadget>
<output>7</output>

<result>7</result>