A rocket with a speed of 50 km/h is flying from galaxy A to galaxy B. After flying for a while, the rocket pilot said that I have been flying for (5/8) hours, and I will arrive at galaxy B in 12 kilometers. What is the distance in kilometers between galaxy A and galaxy B?
一辆速度为50千米/小时的火箭从甲星系飞往乙星系，飞一段路后，火箭驾驶员说我已经飞了(5/8)小时，还有12千米就到乙星系了．甲星系、乙星系之间的距离是多少千米？
<gadget id="calculator">5 / 8</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">50 * (5/8)</gadget>
<output>125/4 = around 31.25</output>

<gadget id="calculator">(125/4) + 12</gadget>
<output>173/4 = around 43.25</output>

<result>173/4 = around 43.25</result>