car travels 80 kilometers per hour. After 5 hours, it happens to complete the journey (5/8). How many kilometers is the whole journey?
一辆汽车每小时行80千米，5小时后正好行完全程的(5/8)，全程多少千米？
<gadget id="calculator">5 / 8</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">5 / (5/8)</gadget>
<output>8</output>

<gadget id="calculator">80 * 8</gadget>
<output>640</output>

<result>640</result>