There are a total of 40 students in a class of five years in a certain school. The teacher assigned homework for two subjects of language and mathematics. In the morning check-up, 37 students completed the math homework, 35 students completed the Chinese homework, and 1 student did not complete the two subjects. Excuse me, what percentage of the total number of people in the class do not complete the math homework?
某校五年一班共有学生40人，老师布置的语数两科家庭作业，早晨检查时数学作业完成的有37人，语文作业完成的有35人，两科都没完成的有1人，请问，数学作业没完成的人数占全班总人数的百分之几？
<gadget id="calculator">40 - 37</gadget>
<output>3</output>

<gadget id="calculator">3 / 40</gadget>
<output>3/40 = around 0.075</output>

<result>3/40 = around 0.075</result>