The number of the school's track and field team is the chorus team (3/4), and the number of the dance team is the track and field team (2/5). The school dance team has 24 people. How many people are there in the school chorus? Column: how much.
学校田径队的人数是合唱队的(3/4)，舞蹈队的人数是田径队的(2/5)．学校舞蹈队有24人．学校合唱队有多少人？列式：多少．
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">24 / (2/5) / (3/4)</gadget>
<output>80</output>

<result>80</result>