We have the following number:
23.5
This number can be written as:
23 + 0.5
Or:
23 + 1/2
So, the new expression gives us two new numbers. In this way, we can say that:
23 = Twenty three
1/2 = a half
In conclusion, the number 23.5 can be written as follows:
23.5 = Twenty three and a half