Two trains, A and B, depart from each other at a distance of 800 km. It is known that A's speed is 180 km/h, and B's speed is 120 km/h. When they meet, how many kilometers has A traveled more than B?
甲、乙两列火车分别从相距800千米处相对开出．已知甲的速度为180千米/时，乙的速度为120千米/时，相遇时，甲比乙多行了多少千米？
<gadget id="calculator">180 + 120</gadget>
<output>300</output>

<gadget id="calculator">800 / 300</gadget>
<output>8/3 = around 2.666667</output>

<gadget id="calculator">180 * (8/3)</gadget>
<output>480</output>

<gadget id="calculator">120 * (8/3)</gadget>
<output>320</output>

<gadget id="calculator">480 - 320</gadget>
<output>160</output>

<result>160</result>