your middle school has 900 students.1/3 of the students bring their lunch instead of buying a lunch at school. what is the value of the ratio of the number of students who do bring a lunch to the number of students who do not
This is how I interpret the problem:
900 x 1/3 =300 students bring their lunch
900 - 300 =600 students do not. So, the ratio of the two would be:
300 / 600 =1/2