One day, there were 38 people present in the May 1st class, and 2 people were absent. What is the attendance rate?
有一天，五一班出席38人，缺席2人，出勤率是多少．
<gadget id="calculator">38 + 2</gadget>
<output>40</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>