A train travels from place A to place B, and has traveled the entire distance (3/5), which is 243 kilometers. What is the distance in kilometers between A and B?
一列火车从甲地开往乙地，已经行了全程的(3/5)，行了243千米．甲乙两地之间的距离是多少千米？
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">243 / (3/5)</gadget>
<output>405</output>

<result>405</result>