The art group of the school has 30 students, which is 1/5 more than the model group. How many more people are there in the art team than in the aircraft model team?
学校美术小组有学生30人，比航模小组人数多(1/5)．美术小组比航模小组多多少人？
<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>

<gadget id="calculator">30 - 25</gadget>
<output>5</output>

<result>5</result>