The experimental primary school art group is composed of science and technology group (8/9), and the sports group is composed of science and technology group (5/9). There are 40 people in the art group, how many people are there in the sports group?
实验小学美术组人数是科技组的(8/9)，体育组人数是科技组的(5/9)．美术组有40人，体育组有多少人？
<gadget id="calculator">8 / 9</gadget>
<output>8/9 = around 0.888889</output>

<gadget id="calculator">40 / (8/9)</gadget>
<output>45</output>

<gadget id="calculator">5 / 9</gadget>
<output>5/9 = around 0.555556</output>

<gadget id="calculator">45 * (5/9)</gadget>
<output>25</output>

<result>25</result>