Answer:
A and B
Step-by-step explanation:
To find the answer in these problems you must first convert the mixed numbers to improper fractions using the equations
.
So for the top equation you would have to do something like
which equals:

And make sure to do that for both mixed numbers.
You would then plug those mixed numbers back into the equation like so:

Multiply them together to get

then subtract that by 1/2
convert it back into a mixed fraction.
and you should get
as your answer.
You then must do that for all the questions and find whichever ones match with that one.