The students in Class 5 and 1 went to visit the History Museum of the Central Revolutionary Base Area. They spent 5 hours in total. Among them, the time spent on the road accounted for (2/5), and the lunch and rest time accounted for 0.3 hours. The rest of the time was for sightseeing. What percentage?
五1班学生去参观中央革命根据地历史博物馆，共用去5小时，其中路上用去的时间占(2/5)，吃午饭和休息时间共占0.3小时，剩下的时间是游览时间，游览时间占几分之几？
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">5 * (2/5)</gadget>
<output>2</output>

<gadget id="calculator">5 - 2 - 0.3</gadget>
<output>2.7</output>

<gadget id="calculator">2.7 / 5</gadget>
<output>0.54</output>

<result>0.54</result>