A passenger car travels from A to B. It is planned to take 5 hours to arrive, but it actually takes 1.2 hours to travel 120 kilometers, accounting for 4/13 of the whole journey. According to this calculation, how many hours can it arrive in advance?
一客车从甲地到乙地，计划用5小时到达，实际用1.2小时就行了120千米，占全程的(4/13)，照这样计算，可以提前几小时到达？
<gadget id="calculator">4 / 13</gadget>
<output>4/13 = around 0.307692</output>

<gadget id="calculator">120 / (4/13)</gadget>
<output>390</output>

<gadget id="calculator">120 / 1.2</gadget>
<output>100</output>

<gadget id="calculator">390 / 100</gadget>
<output>39/10 = around 3.9</output>

<gadget id="calculator">5 - (39/10)</gadget>
<output>11/10 = around 1.1</output>

<result>11/10 = around 1.1</result>