There are 45 students in Xiaojia's class, and 4 of them fail the Chinese test. What is the possibility of Xiaojia failing the Chinese test?
小佳所在班级有45名同学，在语文考试中有4人不及格，小佳语文考试不及格的可能性是多少．
<gadget id="calculator">4 / 45</gadget>
<output>4/45 = around 0.088889</output>

<result>4/45 = around 0.088889</result>