The distance between A and B is 450 kilometers. A bus travels (1/3) of the whole journey in (5/3) hours. How many kilometers does this bus travel per hour?
甲乙两地相距450千米，一辆客车用了(5/3)小时行了全程的(1/3)，这辆客车每小时行多少千米？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">5 / 3</gadget>
<output>5/3 = around 1.666667</output>

<gadget id="calculator">(1/3) / (5/3)</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">450 * (1/5)</gadget>
<output>90</output>

<result>90</result>