The charging method of long-distance calls is as follows: 0.40 yuan for the first minute after the call is connected, and 0.06 yuan for every 6 seconds after that. Xiao Ming, who lives in Jiangning District, Nanjing, called his father in Beijing, and the call lasted 108 seconds. How much does Xiao Ming pay for this call?
长途电话的收费方式如下：接通电话后的第一分钟收费0.40元，之后的每6秒钟收费0.06元．家住南京江宁区的小明打电话给在北京的爸爸，通话时间是108秒．小明这次通话应付电话费多少元？
<gadget id="calculator">108 - 60</gadget>
<output>48</output>

<gadget id="calculator">48 / 6</gadget>
<output>8</output>

<gadget id="calculator">8 * 0.06</gadget>
<output>0.48</output>

<gadget id="calculator">0.48 + 0.4</gadget>
<output>0.88</output>

<result>0.88</result>