A and B go from A to B at the same time, A is 12 km/h per minute, B is 9 km/h per minute, A travels 184 km and returns to pick up things, so they arrive at B 1 hour late , How many kilometers is the distance between the two places?
甲、乙两人同时从A地去B地，甲每分钟12千米/时，乙每分钟9千米/时，甲行了184千米处返回取东西，因此迟了1小时到B地，两地相距多少千米？
<gadget id="calculator">552 / 12</gadget>
<output>46</output>

<gadget id="calculator">46 - 1</gadget>
<output>45</output>

<gadget id="calculator">1 / 9</gadget>
<output>1/9 = around 0.111111</output>

<gadget id="calculator">1 / 12</gadget>
<output>1/12 = around 0.083333</output>

<gadget id="calculator">(1/9) - (1/12)</gadget>
<output>1/36 = around 0.027778</output>

<gadget id="calculator">45 / (1/36)</gadget>
<output>1_620</output>

<result>1_620</result>