1)
The number 3 is split into 3 equal parts which are blue boxes, each blue box is split into 3 equal parts which are red boxes.
There are 9 red boxes.
3 divided by 1/3=The number of red boxes
2)
The number 6 is split into 6 equal parts which are blue boxes, each blue box is split into 2 equal parts which are red boxes.
There are 12 red boxes.
6 divided by 1/2= the total number of red boxes
3)
The number 4 is split into 4 equal parts which are blue boxes, each blue box is split into 2 equal parts which are red boxes.
There are 8 red boxes.
4 is divided into 1/2= the total number of red boxes.
4)
The number 4 is split into 4 equal parts which are blue boxes and each blue box is spilt into 5 equal parts which are red boxes 1/5.
There are 20 red boxes.
4 is divided by 1/5=the total number of red boxes.
