The number of the music group in the experimental primary school is (4/5) that of the sports group, and the number of the sports group is (2/3) that of the art group. There are 8 people in the music group, how many people are there in the art group?
实验小学音乐小组的人数是体育小组的(4/5)，体育小组的人数又是美术小组人数的(2/3)．音乐小组有8人，美术小组有多少人．
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">8 / (4/5) / (2/3)</gadget>
<output>15</output>

<result>15</result>