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I don't understand what they want me to do or where to begin. Pre-calculus maybe a proof not sure

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with what
post your math question and I will try to help you
its attached
1 Attachment

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Other answers:

what course is this? looks like you are doing a proof
this is pre-caculus
calculus or precal?
sorry for the confusion precalculus
ok did not look like calculus
looks like I might not be able to help after all but I can tell you that they multiply d to both sides to get this|dw:1346461339585:dw|
not sure what is going on after that, I find all of those blanks confusing
don't they have a lecture part prior to this?
I am supposed to fill in the blanks
yes, I realize that but I am not following the logic to it. I am sure they are applying many algebraic properties along the way
Well thanks anyway dude
sorry, maybe someone else will come help you. You can always close this problem and repost it but it might help if you write it out using draw (some people will not open attachments). btw I am a girl
alright I think I'll take my chances with the attachment since it would take me forever to write that out and it might not even be legible
it says add \(a\) to both sides so the 3rd line would be \[ \large a+\frac{ad}{b}
where does it say add a?
Ill take that on faith for now
it is on the third line to the right
it also says simplify
"Adding a to both sides and simplifying, we see that" I see but I'm not sure what to do still. What do they want me to do for the next line?
put a common denominator on a?
no. just what i wrote.
then add the fractions on the left side \[ \large \frac{ab+ad}{b}
then factor \(a\) \[ \large \frac{a}{b}\cdot(b+d)
Thanks I think I get it now.
then \(b+d\) passes to the other side to divide \[ \large \frac{a}{b}<\frac{a+c}{b+d} \]
this covers the first part :)
is the second part different?
concept wise
not at all, try it.
Thanks alot. I'm new. Should I keep the question open? Until I work it out?
it's up to u. i'll be here for one more hour or so.
sweet thanks
do u know how to call someone's atention??
write @ to the left of his "name". like this @znimon
@helder_edwin it says my lines 3(half of line 3) and 4 are wrong. I have (b+d)/b and in the last blank I have (ab+cb)/(b+d)
of part 1
the first two blanks (line 3) should be \(a\)
ok says my 5th and 7th blanks are wrong
next line should be \[ \large ab+ad\qquad\text{and}\qquad a \]
have that
next line should be \[ \large b+d\qquad\text{and}\qquad a \]
why isn't b+d divided by b
u r factoring a from the denominator and just puting the dominator (b) under what u just factored
hmm I don't really get it
it is this \[ \large \frac{r\cdot s}{m}=\frac{r}{m}\cdot s \]
oh I get it not breaking the number into its prime factors
so \[ \large \frac{ab+ad}{b}=\frac{a(b+d)}{b}=\frac{a}{b}\cdot(b+d) \]
got it thanks
so the final blank should be (a+c)/b+d
the next (last) line would be \[ \large \frac{a+c}{b+d} \]
now do the next part
as i told u it's very similar
first two lines should both be c
@znimon next??
@helder_edwin finished and all correct
thanks again
u r welcome

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