Please help v

17

Step-by-step explanation:

since you are subtracting a negative number it reverses, so you actually ADD the two together

so, 12 1/2 + 4 1/2

add the whole numbers first;

12+4=16

then fractions:

1/2 + 1/2= 1

then all together;

16+1=17!

add an image !

step-by-step explanation:

use this formula:

p(a\b) = p(a and b)/p(b).

take it from here.