The number of people in the science and technology group of the experimental primary school is the art group (8/9), the number of people in the science and technology group is the sports group (4/5), the art group has 72 people, how many people are there in the sports group?
实验小学科技组人数是美术组的(8/9)，科技组人数是体育组的(4/5)，美术组有72人，体育组有多少人？
<gadget id="calculator">8 / 9</gadget>
<output>8/9 = around 0.888889</output>

<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">(8/9) / (4/5)</gadget>
<output>10/9 = around 1.111111</output>

<gadget id="calculator">72 * (10/9)</gadget>
<output>80</output>

<result>80</result>