The art interest group has 36 people, 20% less than the music interest group. How many people are there between the art interest group and the music interest group?
美术兴趣小组有36人，比音乐兴趣小组少20%．美术兴趣小组和音乐兴趣小组相差多少人？
<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">36 / (4/5)</gadget>
<output>45</output>

<gadget id="calculator">45 - 36</gadget>
<output>9</output>

<result>9</result>