Answer:
3) 9 11/15 4) 7 1/3
Explanation:
3) 4 2/5 + 5 2/6
4 12/30 + 5 10/30 **Find LCM (they are still equal)**
4+5=9
12/30 + 10/30= (12+10)/30= 22/30
9 11/15 **Simplify (I divided by 2)**
4) 3 7/7 + 3 1/3
4 + 3 1/3 **Simplify (7/7 is the same is 1)**
7 1/3
Hope I was able to help. Good Luck!