There are 60 people in the school's art extracurricular interest group, and the number of chorus is half of the art group. How many people are there in the art group and chorus?
学校美术课外兴趣小组有60人，合唱队的人数是美术小组的一半，参加美术小组和合唱队的一共有多少人？
<gadget id="calculator">60 / 2</gadget>
<output>30</output>

<gadget id="calculator">60 + 30</gadget>
<output>90</output>

<result>90</result>