1
No.Two matrices A and B can be added or subtracted if and only if they have the same number of rows and columns. That is a 3 x 2 matrix can be added or subtracted only with another 3 x 2 matrix.
(4+5) - (2 x 3) = 3
6
2.75 or 2 3/4 3 1/2 - 3/4 = 7/2 -3/4 = 14/4 - 3/4 = 11/4 = 2 3/4
1 subtracted by 3 and one half = -2
1 over 3 subtracted from 2 over 3 would yield 1 over 3.
2
2 and 2/3
1
-2
No.Two matrices A and B can be added or subtracted if and only if they have the same number of rows and columns. That is a 3 x 2 matrix can be added or subtracted only with another 3 x 2 matrix.
2
7/3 − 2/3 = 5/3 or 12/3
3/2 − 6/5 = 3/10
14 - 1/3 = 13 and 2/3
9 - 2 2/5 = 6 3/5.