Answer:
17
Step-by-step explanation:
Simplify:
[tex]12\frac{1}{2} = \frac{25}{2}[/tex]
[tex]-4\frac{1}{2} = \frac{-9}{2}[/tex]
[tex]\frac{25}{2} - (\frac{-9}{2} ) = \frac{25}{2} + \frac{9}{2} = \frac{34}{2} = 17[/tex]
When you have a subtraction sign next to a negative number, the negative number will turn positive since it's understood as -1 multiplied by the number when it's a negative number.
