The art team has 30 people, which is 1/5 more than the aircraft model team. How many people are there in the aircraft model team?
美术小组有30人，比航模小组人数多(1/5)，航模小组有多少人？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 + (1/5)</gadget>
<output>6/5 = around 1.2</output>

<gadget id="calculator">30 / (6/5)</gadget>
<output>25</output>

<result>25</result>