In a classroom, 2/12 of students play baseball, 4/12 play football, 1/12 are in the chorus, and the rest participate in volunteer programs. What fraction of the students participate in volunteer programs? explain your answer

12/12 would be the fraction of all students ... now subtract all of the fractions that represent students not in the volunteer programs ...

12/12-2/12-4/12-1/12

(12-2-4-1) / 12

5/12

So 5/12 of the student participate in volunteer programs.