D u got to add a lil bit and that you do division
positive number times negative number is negative number "(+)(-) = (-)".

we change the mixed numbers to the improper fractions

Answer:
Option C.
Step-by-step explanation:
By the property of unique triangles (ASA), one side is included between the two angles.
By this property, if included side of the triangle ABC is AB then this side will be included between the two angles A and B.
Therefore,
is included between ∠A and ∠B.
Option C. will be the answer.
3/4 is the simplified version of 9/12