There are 100 fifth-grade students who have reached the physical exercise standard, and 25 who have not reached the standard. What is the standard rate of physical exercise for fifth grade students?
五年级学生达到体育锻炼标准的有100人，没有达到标准的有25人．五年级学生体育锻炼的达标率是多少？
<gadget id="calculator">100 + 25</gadget>
<output>125</output>

<gadget id="calculator">100 / 125</gadget>
<output>4/5 = around 0.8</output>

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

<gadget id="calculator">(4/5) * 1</gadget>
<output>4/5 = around 0.8</output>

<result>4/5 = around 0.8</result>