There are 960 students in Xiangyang Primary School, 840 of whom eat at school, and how many students do not eat at school?
向阳小学有学生960人，其中在校就餐的有840人，不在学校就餐的占全校学生数多少．
<gadget id="calculator">960 - 840</gadget>
<output>120</output>

<gadget id="calculator">120 / 960</gadget>
<output>1/8 = around 0.125</output>

<result>1/8 = around 0.125</result>