There are 40 students in a class, and 2 students are absent on a certain day, what is the attendance rate of this class on this day
某班有40名学生，某一天有2名生缺勤，这个班这一天的出勤率是多少
<gadget id="calculator">40 - 2</gadget>
<output>38</output>

<gadget id="calculator">38 / 40</gadget>
<output>19/20 = around 0.95</output>

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

<gadget id="calculator">(19/20) * 1</gadget>
<output>19/20 = around 0.95</output>

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