A car drives from city A to city B at a speed of 45 kilometers per hour, and travels the entire distance in 3 hours (5/9). How many kilometers are there between the two cities?
一辆汽车以每小时45千米的速度从甲城开往乙城，3小时行了全程的(5/9)．甲乙两城相距多少千米？
<gadget id="calculator">5 / 9</gadget>
<output>5/9 = around 0.555556</output>

<gadget id="calculator">3 / (5/9)</gadget>
<output>27/5 = around 5.4</output>

<gadget id="calculator">45 * (27/5)</gadget>
<output>243</output>

<result>243</result>