There are 398 sixth graders who attended work today, and 2 people who asked for leave due to business. What is the attendance rate of sixth graders today?
六年级今天出勤的有398人，因事请假的有2人，六年级今天出勤率是多少．
<gadget id="calculator">398 + 2</gadget>
<output>400</output>

<gadget id="calculator">398 / 400</gadget>
<output>199/200 = around 0.995</output>

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

<gadget id="calculator">(199/200) * 1</gadget>
<output>199/200 = around 0.995</output>

<result>199/200 = around 0.995</result>