The ratio of the number of people in the instrumental music group to the dance group in the Children's Palace is 7:6. There are 42 people in the instrumental music group. How many people are there in the dance group?
少年宫器乐组和舞蹈组人数的比是7：6，器乐组有42人，舞蹈组有多少人？
<gadget id="calculator">6 / 7</gadget>
<output>6/7 = around 0.857143</output>

<gadget id="calculator">42 * (6/7)</gadget>
<output>36</output>

<result>36</result>