Question

can anyone say answers are correct or not

above one is an eg

I have some questions. the answers are correct or not I dont now.

1. 5/6+4/9= 69/54
2. 15/17+ 4/17 = 227/289
3. 7/9+3/4 = 55/36
4. -7/39- 4/13 = 247/ 507
5. -13/9+ 6/13=115 /117

plz say that the answers which got is correct or not

Answer 1

1 is correct. 2 is wrong. 3 is correct. 4 is wrong. 5 is wrong.

Answer 2

1.its correct
2. 15/17 + 4/17 = 60/289
3. It's correct
4.-7/39 - 4/13 = 55/36
5.-13/9 + 6/13 = -115/117