There are 50 students in a class, and 1 student asks for leave. What is the attendance rate?
某班有学生50人，请假1人，出勤率是多少．
<gadget id="calculator">49 / 50</gadget>
<output>49/50 = around 0.98</output>

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

<gadget id="calculator">(49/50) * 1</gadget>
<output>49/50 = around 0.98</output>

<result>49/50 = around 0.98</result>