A car (3/4) travels 45 kilometers per hour. According to this calculation, how many hours does it take to travel 120 kilometers.
一辆汽车(3/4)小时行45千米，照这样计算，120千米需行多少小时．
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">45 / (3/4)</gadget>
<output>60</output>

<gadget id="calculator">120 / 60</gadget>
<output>2</output>

<result>2</result>