From point A to point B, car A takes 8 hours to complete the journey, and car B takes 10 hours to complete the journey. How much faster is the speed of car A than car B?
从A地到B地，甲车行完全程要行8小时，乙车行完全程要行10小时，甲车速度比乙车速度快多少．
<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">(1/8) - (1/10)</gadget>
<output>1/40 = around 0.025</output>

<gadget id="calculator">(1/40) / (1/10)</gadget>
<output>1/4 = around 0.25</output>

<result>1/4 = around 0.25</result>