There are 18 buses in the parking lot, and the number of cars is more than that of buses (1/6). How many cars are there?
停车场有18辆大客车，小汽车的辆数比大客车多(1/6)，小汽车有多少辆？
<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">1 + (1/6)</gadget>
<output>7/6 = around 1.166667</output>

<gadget id="calculator">18 * (7/6)</gadget>
<output>21</output>

<result>21</result>