There are 50 students in class 601, and 49 students came to school today. What is the absentee rate?
601班有学生50人，今天到校49人，缺勤率是多少．
<gadget id="calculator">50 - 49</gadget>
<output>1</output>

<gadget id="calculator">1 / 50</gadget>
<output>1/50 = around 0.02</output>

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

<gadget id="calculator">(1/50) * 1</gadget>
<output>1/50 = around 0.02</output>

<result>1/50 = around 0.02</result>