car drives from A to B. The ratio of the distance traveled to the remaining distance is 5:3. At this time, the distance traveled is 100 kilometers longer than the remaining distance. How many kilometers is the distance between A and B? ?
一辆汽车从甲地开往乙地，已行的路程与余下的路程的比是5：3，这时已行的路程比余下的路程多100千米，甲乙两地的路程是多少千米？
<gadget id="calculator">5 + 3</gadget>
<output>8</output>

<gadget id="calculator">5 / 8</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">(5/8) - (3/8)</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">100 / (1/4)</gadget>
<output>400</output>

<result>400</result>