Six (1, 38 students took the mathematics test, and 32 students got good grades, so how many students did not achieve good grades in the total number of the class.
六(1,38人参加数学考试，32人成绩良好，那么没有达到良好成绩的学生人数占全班总人数的多少．
<gadget id="calculator">38 - 32</gadget>
<output>6</output>

<gadget id="calculator">6 / 38</gadget>
<output>3/19 = around 0.157895</output>

<result>3/19 = around 0.157895</result>