~Hello There!~
Divide the total number of pounds by the fraction in each container:
![5/ ((6)/(8))](https://img.qammunity.org/2020/formulas/mathematics/middle-school/w097cwd46y871ste59e7at4j3zigyqpxy8.png)
This will give you:
6.66666666667
Assuming that Mr B didn't bring any partially filled containers, he would have had to bring 7 containers.
Hope This Helps You!
Good Luck :)
Have A Great Day ^_^
- Hannah ❤