Quote Originally Posted by Antonio1986 View Post
один миллион с половиной
OK, but полтора миллиона is better.

Quote Originally Posted by Antonio1986 View Post
три с половиной миллиона
Yes.

Quote Originally Posted by Antonio1986 View Post
шестнадцать с половиной миллионов
Yes.

Quote Originally Posted by Antonio1986 View Post
The use of половина is the approriate in this case?
Absolutely.