11 1/2=11.5
1 3/4=1.75
11.5/1.75=about 6.57
Shelia needs 7 containers because you cannot cut off a part of container and use it.
Answer:
You could cut it up into pieces and create and the the sides into 4 extra edges, 2 of them being the same as each other and the other 2 of them being the same as each other.
The answer is a 21/9-7/6=126-63/54. Tge answer is a 63/54