There are 80 people in the school chorus group, the number of people in the painting group is 4/5 of that of the chorus group, and the number of people in the dance group is 1/2 of that of the painting group. How many people are there in the dance group?
学校合唱小组有80人，绘画小组的人数是合唱小组的(4/5)，舞蹈小组的人数是绘画小组的(1/2)，舞蹈小组有多少人？
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">80 * (4/5) * (1/2)</gadget>
<output>32</output>

<result>32</result>