During the Class A period, there were 36 students in class 601 of a certain school on a certain day, and 9 people were absent. What is the attendance rate of the whole class on this day?
甲流期间，某校601班某一天出勤36人，缺勤9人，这一天全班出勤率是多少．
<gadget id="calculator">36 + 9</gadget>
<output>45</output>

<gadget id="calculator">36 / 45</gadget>
<output>4/5 = around 0.8</output>

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

<gadget id="calculator">(4/5) * 1</gadget>
<output>4/5 = around 0.8</output>

<result>4/5 = around 0.8</result>