According to the survey, among the students of Mingzhu Primary School, 450 students were picked up by their parents, and the number of students whose parents picked them up was not picked up (5/4). How many people are not picked up by their parents?
据调查，明珠小学的学生中家长接送的有450人，家长接送的学生数是不接送的(5/4)．家长不接送的有多少人？
<gadget id="calculator">5 / 4</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">450 / (5/4)</gadget>
<output>360</output>

<result>360</result>