A car travels 400 kilometers from place A to place B, which happens to be the whole journey (5/7). How many kilometers are there between places A and B?
一辆汽车从甲地到乙地行驶了400千米，正好是全程的(5/7)，甲乙两地相距多少千米？
<gadget id="calculator">5 / 7</gadget>
<output>5/7 = around 0.714286</output>

<gadget id="calculator">400 / (5/7)</gadget>
<output>560</output>

<result>560</result>