The school organizes interest group activities. There are 30 people participating in the calligraphy group, which is 6 people less than 45% of the art group. How many people participate in the art group?
学校开展兴趣小组活动，参加书法组的有30人，比美术组的45%少6人，参加美术组的有几人？
<gadget id="calculator">30 + 6</gadget>
<output>36</output>

<gadget id="calculator">45 / 100</gadget>
<output>9/20 = around 0.45</output>

<gadget id="calculator">36 / (9/20)</gadget>
<output>80</output>

<result>80</result>