Two people, A and B, start from A and B at the same time. A's speed is 1.5 times that of B's. After arriving at the starting point of the other party, they return immediately. If the distance between the first meeting point and the second meeting point is 300 meters, then , What is the distance between A and B in meters?
甲、乙两人同时从A、B两地相向出发，甲的速度是乙的速度的1.5倍，到达对方出发点后立即返回，如果第一次相遇点和第二次相遇点相距300米，那么，A、B两地的距离为多少米．
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">(3/5) * 3</gadget>
<output>9/5 = around 1.8</output>

<gadget id="calculator">(9/5) - 1</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">(4/5) - (2/5)</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">300 / (2/5)</gadget>
<output>750</output>

<result>750</result>