There are 50 people who should take the exam at the end of the term, and one of them asks for leave. What is the attendance rate?
期末应参加考试50人，其中1人请假，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>