There are 40 students in the second class of the sixth grade, and 2 are absent. What is the absentee rate?
六年级二班有学生40人，缺席2人，缺勤率是多少．
<gadget id="calculator">2 / 40</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">100 / 100</gadget>
<output>1</output>

<gadget id="calculator">(1/20) * 1</gadget>
<output>1/20 = around 0.05</output>

<result>1/20 = around 0.05</result>