divide the following rational algebraic expression show your complete solution

Answer:
1. a+7/3b
2. 15/13 or 1 2/13
3. 7y+10
Step-by-step explanation:
1. a/3b+7/3b
=a+7/3b
=a+7/3b
2. 15h/14÷13h/14
=15h/14x14/13h
=15h/1x1/13h
=15x1/13
=15/13
=1 2/13
3. 49y²/7y-10 - 100/7y-10
=49y²-100/7y-10
=(7y-10)(7y+10)/7y-10
=7y+10
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