MATRICES

Question

What is the sum of [3/4 -2/-3]+[-5/3 -4/-2]?
a. [-8/1 2/6]
b. [-2/7 2/-1]
c. [2/-7 6/5]
d. [-2/7 -6/-5]**

What is the difference of [3/4 -2/-3]-[2/7 -5/12]
a. [-3/-1 3/7]
b. [1/-3 3/-15]
c. [-3/3 -3/15]**
d. [-1/3 3/-15]