An express train and a slow train depart from A and B oppositely at the same time, and the express train meets the slow train at (5/9) of the journey. The slow train continues to drive forward at a speed of 45 kilometers per hour, and it takes 2 hours to complete the remaining distance. How many kilometers are there between A and B?
一列快车和一列慢车同时从甲、乙两地相对开出，快车行完全程的(5/9)时，与慢车相遇．慢车继续以每小时45千米的速度向前行驶，用2小时行完余下的路程．甲、乙两地相距多少千米？
<gadget id="calculator">5 / 9</gadget>
<output>5/9 = around 0.555556</output>

<gadget id="calculator">2 / (5/9)</gadget>
<output>18/5 = around 3.6</output>

<gadget id="calculator">45 * (18/5)</gadget>
<output>162</output>

<result>162</result>