A passenger plane flies to a certain place, flying 850 kilometers per hour, and flies (2/3) of the distance in 40 minutes. How many kilometers is the total distance?
一架客机飞往某地，每小时飞行850千米，40分钟飞完全程的(2/3)，全部航程是多少千米？
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">(2/3) / (2/3)</gadget>
<output>1</output>

<gadget id="calculator">850 * 1</gadget>
<output>850</output>

<result>850</result>