In a math test, 2 students in the first group scored below 80 points, 3 students scored 80-90 points, 6 students scored 90-99 points, and 3 students scored 100 points. 90 points or more accounted for the number of people in the whole group.
一次数学测验中，第一小组同学成绩在80分以下的有2人，80～90分的有3人，90～99分的有6人，100分的有3人．90分以上的占全组人数的多少．
<gadget id="calculator">6 + 3</gadget>
<output>9</output>

<gadget id="calculator">2 + 3 + 6 + 3</gadget>
<output>14</output>

<gadget id="calculator">9 / 14</gadget>
<output>9/14 = around 0.642857</output>

<result>9/14 = around 0.642857</result>