The distance between A and B is several kilometers. It takes 20 hours for car A to travel alone. After 5 hours, car A starts from point A, and then car B starts from point B. The two cars go towards each other, and the two cars meet each other in 6 hours. , Q: What fraction of the total length of car B traveling per hour?
A、B两地相距若干千米，甲车单独行完全程需20小时，当甲车从A地出发5小时后，乙车才从B地出发，两车相向而行，6小时两车相遇，问：乙车每小时行全长的几分之几？
<gadget id="calculator">1 / 20</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">5 + 6</gadget>
<output>11</output>

<gadget id="calculator">(1/20) * 11</gadget>
<output>11/20 = around 0.55</output>

<gadget id="calculator">1 - (11/20)</gadget>
<output>9/20 = around 0.45</output>

<gadget id="calculator">(9/20) / 6</gadget>
<output>3/40 = around 0.075</output>

<result>3/40 = around 0.075</result>