There are 15 people in the calligraphy class, and the number of people in the painting class is 6 times that of the calligraphy class. The number of people in the painting class is divided into 5 groups on average. How many people are there in each group?
书法班有15人，绘画班的人数是书法班的6倍，绘画班的人数平均分成5个小组，每个小组有多少人？
<gadget id="calculator">6 / 5</gadget>
<output>6/5 = around 1.2</output>

<gadget id="calculator">15 * (6/5)</gadget>
<output>18</output>

<result>18</result>