There are 150 students in the fifth grade, and 3 of them were late yesterday. What was the attendance rate of the fifth grade yesterday?
五年级有学生150人，昨天有3人迟到．五年级昨天的出勤率是多少．
<gadget id="calculator">150 - 3</gadget>
<output>147</output>

<gadget id="calculator">147 / 150</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>