Answer:
- 5/7
- 6/11
- 3/3 or 1
- 5/5 or 1
- 7/12
Step-by-step explanation:
1. The sign is for adding so you should just add the both side
2. same as 1
3-4 the sign is for subtract so u should subtract the given
ex: 3/3, 5/5
it can be directly consider as 1, but base on the direction it's just ADD and SUBTRACT so no division allowed
5. same as 1 and 2
