Expert: Richard J. Raridon - 4/14/2004

Question
I am having trouble with these, I just don't se it.
 Show that (-a/b)= -(a/b)
           a/(-b)= -(a/b)
           -[(-a)/(-b)]= -a(/b)
            express a+b/c as fraction
Thank you for your help. Will you show the work?

Answer
For the first two, it makes no difference where the minus sign is.  The expressions are negative
For the third one, two minuses equal a plus so you have
-[(a)/(b)] = -a/b or -a/(b)
For the last one, I presume you mean a+(b/c) which equals
(ac+b)/c