There are 18 lions in the zoo, which is less than the number of tigers (1/4). How many more tigers in the zoo than lions?
动物园有狮子18只，比老虎的只数少(1/4)，动物园的老虎比狮子多多少只？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 - (1/4)</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">18 / (3/4)</gadget>
<output>24</output>

<gadget id="calculator">24 - 18</gadget>
<output>6</output>

<result>6</result>