A and B run around a 540-meter-long circular track. A runs 5 meters per second, and B runs 4 meters per second. If they start from the same place at the same time and run in opposite directions, they will meet each other until they return to the starting point at the same time. How many times have you met, (including the meeting when you went back to the starting point at the same time)
甲乙两人绕540米长的环形跑道跑步，甲每秒跑5米，乙每秒跑4米，若他们同时从同一地点出发且跑的方向相反，则到他们同时回去到起点为止，共相遇了多少次，(包括同时回去到起点时那次相遇)
<gadget id="calculator">540 / 5</gadget>
<output>108</output>

<gadget id="calculator">540 / 108</gadget>
<output>5</output>

<gadget id="calculator">540 / 4</gadget>
<output>135</output>

<gadget id="calculator">540 / 135</gadget>
<output>4</output>

<gadget id="calculator">5 + 4</gadget>
<output>9</output>

<result>9</result>