127
29 + 49 = 78
78 - (-49) is the same as 78 + 49 which equals 127
127
439 ÷ 78 = 5 49/78 = 5.6282051282051... ≈ 5.628
The factor of both 28 and 49 is 78.
14 add 49 = 63
78/294 = 13/49 in its simplest form
That depends on the question which has not been given.
134
78
78
539