There are 360 students in Yucai Primary School, 18 of them did not participate in the interest activity group, what percentage of the whole school took part in the interest activity group?
育才小学有360名学生，其中有18名学生没有参加兴趣活动小组，参加兴趣活动小组的占全校人数的百分之几？
<gadget id="calculator">360 - 18</gadget>
<output>342</output>

<gadget id="calculator">342 / 360</gadget>
<output>19/20 = around 0.95</output>

<result>19/20 = around 0.95</result>