SOLUTION: Please walk me through this problem. I have the answer, but I am unable to work past the second step. a/(a + x) divided by (a + x)/b multiplied by a + x divided by 2ab. Thank

Algebra ->  Functions -> SOLUTION: Please walk me through this problem. I have the answer, but I am unable to work past the second step. a/(a + x) divided by (a + x)/b multiplied by a + x divided by 2ab. Thank       Log On


   

Question 301768: Please walk me through this problem. I have the answer, but I am unable to work past the second step. a/(a + x) divided by (a + x)/b multiplied by a + x divided by 2ab.
Thank you
aesmith2@cox.net
Answer by JBarnum(2146) About Me  (Show Source):
You can put this solution on YOUR website!
this is what you say the problem is as u have written it
%28%28%28a%2F%28a%2Bx%29%29%2F%28%28a%2Bx%29%2Fb%29%29%28a%2Bx%29%29%2F2ab%29
first when u have a fraction over a fraction its a lot easier to calculate if u multiply the top fraction by the reciprical of the bottom fraction.
%28%28a%2F%28a%2Bx%29%29%28b%2F%28a%2Bx%29%29%28a%2Bx%29%29%2F2ab%29
since a+x is in numerator and there is one a+x in denomerator and they are being multiplied they can be cross cancelled out
%28%28a%2F%28a%2Bx%29%29%28b%2Fcross%28a%2Bx%29%29cross%28a%2Bx%29%29%2F2ab%29
%28%28a%2F%28a%2Bx%29%29%28b%2F1%29%2F2ab%29
multiply the numerators
%28%28ab%2F%28a%2Bx%29%29%2F2ab%29
same thing as befor, when u have a fraction over a fraction its a lot easier to calculate if u multiply the top fraction by the reciprical of the bottom fraction.
%28%28ab%2F%28a%2Bx%29%29%2F%282ab%2F1%29%29
%28ab%2F%28a%2Bx%29%29%281%2F2ab%29%29
cross cancell the ab
%28cross%28ab%29%2F%28a%2Bx%29%29%281%2F2cross%28ab%29%29%29
%281%2F%28a%2Bx%29%29%281%2F2%29%29%29
multiply across
1%2F2%28a%2Bx%29