The employees of the company plan to charter a bus to go on an outing, and the rental fee will be shared equally by everyone. Because the company has something to do, 6 employees have to work overtime and cannot go. In this way, each person who goes to go will have to pay 5 yuan more. Just before departure, another person came to take a ride. In this way, each person paid 4 yuan more than the original plan. Q: How much is the car rental fee?
公司员工准备包租一辆大客车去郊游，租车费用由大家平摊．因为公司有事，有6名员工要加班不能去了，这样一来，去的人每人要多出5元．临出发时，又来了一人搭车，这样一来，每人比原计划多出了4元．问：租车费是多少元？
<gadget id="calculator">5 / 6</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">6 * (5/6)</gadget>
<output>5</output>

<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

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

<gadget id="calculator">5 - 4</gadget>
<output>1</output>

<gadget id="calculator">(5/6) - (4/5)</gadget>
<output>1/30 = around 0.033333</output>

<gadget id="calculator">1 / (1/30)</gadget>
<output>30</output>

<gadget id="calculator">30 - 6</gadget>
<output>24</output>

<gadget id="calculator">24 * (5/6) * 30</gadget>
<output>600</output>

<result>600</result>