There are 40 teachers in the boarding primary school. 2 people ask for leave one day, what is the attendance rate for that day?
寄宿制小学有教师40人．一天有2人请假，这天的出勤率是多少．
<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>