The distance from Xiaoming's home to school is 0.8 kilometers, and the distance from Xiaoli's home to school is 0.2 kilometers less than three times that of Xiaoming's home to school. How many kilometers did Xiao Ming travel less than Xiao Li when they went from home to school?
小明家到学校的路程是0.8千米，小丽家到学校的路程比小明家到学校的3倍少0.2千米．两人各自从家到学校，小明要比小丽少走多少千米？
<gadget id="calculator">0.8 * 3</gadget>
<output>2.4</output>

<gadget id="calculator">2.4 - 0.2 - 0.8</gadget>
<output>1.4</output>

<result>1.4</result>