passenger car drives from place A to place B at 8:00 in the morning, and travels an average of 60 kilometers per hour. By 8:30 in the morning, the distance of this car from place B is (2/5). How many kilometers are there between A and B?
一辆客车上午8：00从甲地开往乙地，平均每小时行60千米，到上午8：30，这辆汽车距离乙地的路程是(2/5)．甲乙两地相距多少千米？
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1 - (2/5)</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">(1/2) / (3/5)</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">60 * (5/6)</gadget>
<output>50</output>

<result>50</result>