Math

I have 2 problems that I just need to know if they are right
1. Add, Simplify if possible
3/14w + 11/49w
Answer that I got was
21+22/98w
2. Add, simplify if possible
9b/3b-9 + 6b/9b-27
I am not sure about this one
I got two answers
81b+6b/34b-108 or
87b/34b-108
please help

asked by Anonymous
  1. 1. is correct, but not completed:

    (21+22)/98w (careful to use the brackets)
    =43/98w


    2. I went wrong on this one myself, by taking the question down wrong, but I have it straight now.

    Divide 6b/(9b-27) top and bottom by 3. You can do that without changing its value. So

    6b/(9b-27) = 2b/(3b-9)

    Now you're left with 9b/(3b-9) + 2b(3b-9) and I'm sure you can see your way from there.

    posted by jim
  2. reduce all anwser to thir lowesr terms

    posted by yarelis
  3. reduce all anwser to thir lowesr terms 12/25 5/18?

    posted by yarelis

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