Don't worry. You're right. The guide is wrong.
It is just a simple revision, but the answer on the guide and my answers are different! So I would appreciate any help, thank you very much :] It would also be great if the method to solving is shown, because whatever I do, the answer is wrong so I wanted to check where I am wrong.(An example of a question too is given in order to get familiar with the question, just in sake. Thankyou)
Eg:- Q. 82/3
A. 8 2/3 = (23)2/3 = 2 3x2/3 = 22 = 4
Math Question : 16-1/2
My answer: 16-1/2 = 1/161/2 = 1/ √16 = 1/4
Answer on the guide: 4
I would appreciate any help, Thank you.