Yes you are right . In any triangle the 3 medians intersect in one point called centroid
9/12 is number 1. and Number 2 is 1/2 =4/8 and that is 1/2
Whatever is adding with 0 its that number its like mulitipulcation with 1 because whatever is times by one like 25x1= 25
I don't know really ask someone smarter than me
