A and B start from A and B respectively, and A meets B when A walks the whole journey (8/17). Suppose A walks 4 kilometers per hour, and B completes the journey in 5.1 hours. What is the distance in kilometers between A and B?
甲、乙两人分别从A、B两地相对出发，甲走了全程的(8/17)时与乙相遇．假设甲每小时走4千米，乙5.1小时走完全程．问A、B两地相距多少千米？
<gadget id="calculator">17 - 8</gadget>
<output>9</output>

<gadget id="calculator">8 / 9</gadget>
<output>8/9 = around 0.888889</output>

<gadget id="calculator">4 / (8/9)</gadget>
<output>9/2 = around 4.5</output>

<gadget id="calculator">(9/2) * 5.1</gadget>
<output>22.95</output>

<result>22.95</result>