From A to B, it takes 10 hours for a passenger car and 12 hours for a truck. How much faster is the speed of the passenger car than the truck?
从甲地开往乙地，客车要10小时，货车要12小时，客车的速度比货车快多少
<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">1 / 12</gadget>
<output>1/12 = around 0.083333</output>

<gadget id="calculator">(1/10) - (1/12)</gadget>
<output>1/60 = around 0.016667</output>

<gadget id="calculator">(1/60) / (1/12)</gadget>
<output>1/5 = around 0.2</output>

<result>1/5 = around 0.2</result>