There are 240 lychee trees and longan trees in the farm, among which lychee trees account for (9/16). How many more lychee trees than longan trees?
家场有荔枝树和龙眼树共240棵，荔枝树占其中的(9/16)．荔枝树比龙眼树多多少棵？
<gadget id="calculator">9 / 16</gadget>
<output>9/16 = around 0.5625</output>

<gadget id="calculator">1 - (9/16)</gadget>
<output>7/16 = around 0.4375</output>

<gadget id="calculator">(9/16) - (7/16)</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">240 * (1/8)</gadget>
<output>30</output>

<result>30</result>