There are 14 girls and 15 boys in a sixth grade math class. What is the ratio of girls to total students?

I would say 14:15 it’s the only things that makes sense and this ratio can’t further be reduced

The first one, i believe, would be correct. all the others have one thing in common, and that's that they have repeating numbers. in the second one, x and y have repeating 6's and 3's, and in the third, x and y have repeating 6's as well. in the last one, there are repeating 3's. the first one has no repeating numbers.