and B are walking toward each other from two places. It is known that B's speed is A's (3/5). How many kilometers is the distance between the two places?
甲乙两人从两地相向而行，已知乙的速度是甲的(3/5)，若甲先走12千米后才出发，两人相遇时甲比乙多走了18千米，问两地间的距离是多少千米？
<gadget id="calculator">18 - 12</gadget>
<output>6</output>

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">1 - (3/5)</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">6 / (2/5)</gadget>
<output>15</output>

<gadget id="calculator">15 * (3/5)</gadget>
<output>9</output>

<gadget id="calculator">12 + 15 + 9</gadget>
<output>36</output>

<result>36</result>