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andriod09
Group Title
Algebra II question, a fraction on top of a fraction, please help me!
 2 years ago
 2 years ago
andriod09 Group Title
Algebra II question, a fraction on top of a fraction, please help me!
 2 years ago
 2 years ago

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cpattison Group TitleBest ResponseYou've already chosen the best response.0
a fraction on top of a fraction can be rewritten as say (2/3)/(3/4) then you can flip the second one because to divide you multiply by the reciprocal (2/3)*(4/3) then you multiply across the fractions (2*4)/(3*3).
 2 years ago

andriod09 Group TitleBest ResponseYou've already chosen the best response.0
\[\huge\frac{\frac{30x^2+27x+6}{9x^249}}{\frac{30x+15}{30x70}}\] That is the fraction.
 2 years ago

andriod09 Group TitleBest ResponseYou've already chosen the best response.0
@cpattison
 2 years ago

andriod09 Group TitleBest ResponseYou've already chosen the best response.0
@ganeshie8 @Hero
 2 years ago

cpattison Group TitleBest ResponseYou've already chosen the best response.0
one second!
 2 years ago

Hero Group TitleBest ResponseYou've already chosen the best response.0
Put a divide sign between both of them, then put them next to each other. You'll know what to do then.
 2 years ago

Hero Group TitleBest ResponseYou've already chosen the best response.0
\[\huge\frac{30x^2+27x+6}{9x^249} \div \frac{30x+15}{30x70} \]
 2 years ago

cpattison Group TitleBest ResponseYou've already chosen the best response.0
((30x2+27x+6)/(9x2−49))/((30x+15)/(30x−70)) is where we start. then you can flip the bottom half and multiply ((30x2+27x+6)/(9x2−49))*((30x−70)/(30x+15)) then you just multiply though ((30x2+27x+6)*(30x−70))/((9x2−49)*(30x+15))
 2 years ago

cpattison Group TitleBest ResponseYou've already chosen the best response.0
yeah so flip that second fraction
 2 years ago

cpattison Group TitleBest ResponseYou've already chosen the best response.0
i really have to learn how to use the equation bar
 2 years ago

andriod09 Group TitleBest ResponseYou've already chosen the best response.0
@cpattison you should use the \\[LaTeX\] by using the \[\\] minus the \ in the middle.
 2 years ago

Hero Group TitleBest ResponseYou've already chosen the best response.0
I just copied and pasted what @andriod09 wrote with a few minor changes :P
 2 years ago

andriod09 Group TitleBest ResponseYou've already chosen the best response.0
\[\huge\text iknowhowtouseLaTeX\]
 2 years ago

Hero Group TitleBest ResponseYou've already chosen the best response.0
Not as good as me :P
 2 years ago

andriod09 Group TitleBest ResponseYou've already chosen the best response.0
the answer isn't supposed to be like that. it is supposed to be on top of each other though. thats what it says. the answer it: \[\frac{2(5x+2)}{(x7)}\]
 2 years ago

Hero Group TitleBest ResponseYou've already chosen the best response.0
You failed to execute the proper steps. That's why you didn't get it right
 2 years ago

Hero Group TitleBest ResponseYou've already chosen the best response.0
Did you flip the second fraction?
 2 years ago

andriod09 Group TitleBest ResponseYou've already chosen the best response.0
no. i don't know how to solve it like that, you have to factor it out is what the book says, but i don't get it.
 2 years ago

Hero Group TitleBest ResponseYou've already chosen the best response.0
If you had \[\frac{3}{6} \div \frac{3}{9}\] you would have no clue what to do?
 2 years ago

andriod09 Group TitleBest ResponseYou've already chosen the best response.0
thats simple: \[\frac{3}{6}\div\frac{3}{9}=\frac{1.5}{1}\]
 2 years ago

Hero Group TitleBest ResponseYou've already chosen the best response.0
actually, you have it but you failed to execuate the reciprocal rule
 2 years ago

Hero Group TitleBest ResponseYou've already chosen the best response.0
\[\frac{3}{6}\div\frac{3}{9}=\frac{3}{6} \times \frac{9}{3} = \frac{3}{2}\]
 2 years ago

Hero Group TitleBest ResponseYou've already chosen the best response.0
But really, you're supposed to do the reciprocal then reduce in this manner: \[\frac{3}{6}\div\frac{3}{9}=\frac{3}{6} \times \frac{9}{3} =\frac{1}{2} \times 3= \frac{3}{2}\]
 2 years ago

Hero Group TitleBest ResponseYou've already chosen the best response.0
Show me the full steps of how you got 1.5 from 3/6 div 3/9 @andriod09
 2 years ago

Hero Group TitleBest ResponseYou've already chosen the best response.0
You must have used a calculator bro, lol
 2 years ago

Hero Group TitleBest ResponseYou've already chosen the best response.0
Because you never divide by fractions to get a decimal. Only a calculator would do that.
 2 years ago

andriod09 Group TitleBest ResponseYou've already chosen the best response.0
\[\frac{3}{6}\div\frac{3}{9}=\frac{3}{6}\times\frac{9}{3}=\frac{1}{2}\times3=\frac{3}{2}\]
 2 years ago

andriod09 Group TitleBest ResponseYou've already chosen the best response.0
btw, hero i literally typed all that out.
 2 years ago

Hero Group TitleBest ResponseYou've already chosen the best response.0
Good for you. Now do your original problem in the same manner.
 2 years ago

cpattison Group TitleBest ResponseYou've already chosen the best response.0
dw:1349572930013:dw
 2 years ago

cpattison Group TitleBest ResponseYou've already chosen the best response.0
dw:1349573068242:dw
 2 years ago

Hero Group TitleBest ResponseYou've already chosen the best response.0
Don't forget to reduce before executing
 2 years ago

andriod09 Group TitleBest ResponseYou've already chosen the best response.0
that doesn't help me any @cpattison
 2 years ago

cpattison Group TitleBest ResponseYou've already chosen the best response.0
dw:1349573260282:dw
 2 years ago

cpattison Group TitleBest ResponseYou've already chosen the best response.0
i'm trying to work this out too by the way
 2 years ago

andriod09 Group TitleBest ResponseYou've already chosen the best response.0
can you please use the \[LaTeX\]
 2 years ago

andriod09 Group TitleBest ResponseYou've already chosen the best response.0
just use the equation button if need be.
 2 years ago

Hero Group TitleBest ResponseYou've already chosen the best response.0
Try not to do it the hard way @cpattison
 2 years ago

cpattison Group TitleBest ResponseYou've already chosen the best response.0
\[\frac{ 30(10x^2+9x+2)(3x7) }{ 15(9x^24)(2x+1) }\]
 2 years ago

cpattison Group TitleBest ResponseYou've already chosen the best response.0
i'm not sure i know the easy way. enlighten me?
 2 years ago

Hero Group TitleBest ResponseYou've already chosen the best response.0
First I'd have to make sure you're even doing this correctly
 2 years ago

andriod09 Group TitleBest ResponseYou've already chosen the best response.0
How is that the answer though... the answer, from the book, says that the answer is: \[\frac{2(5x+2)}{3x+7}\]
 2 years ago

cpattison Group TitleBest ResponseYou've already chosen the best response.0
i don't know how that happened unless we all have done something wrong. i get \[\frac{ 2(25x^227x14) }{ 9x^24 }\]
 2 years ago

cpattison Group TitleBest ResponseYou've already chosen the best response.0
if i were you i would try and find someone in my class or around me to ask, and double check your equations
 2 years ago

andriod09 Group TitleBest ResponseYou've already chosen the best response.0
A)im homeschooled, B)this is me catching up
 2 years ago

Hero Group TitleBest ResponseYou've already chosen the best response.0
I was following what @cpattison did. I'm sure I would have gotten it if I had taken my own approach.
 2 years ago

CliffSedge Group TitleBest ResponseYou've already chosen the best response.0
Extremesovermeans, anyone? \[\large \frac{\frac{a}{b}}{\frac{c}{d}} = \frac{ad}{bc}\]
 2 years ago

Hero Group TitleBest ResponseYou've already chosen the best response.0
Yep, @cpattison made a mistake because 9x^2  49 is in the denominator
 2 years ago

andriod09 Group TitleBest ResponseYou've already chosen the best response.0
cliff. dafaq/dahell does that even mean????
 2 years ago

Hero Group TitleBest ResponseYou've already chosen the best response.0
dw:1349575081973:dw
 2 years ago

Hero Group TitleBest ResponseYou've already chosen the best response.0
\[\frac{ 2(5x+2)(3x7) }{(3x+7)(3x7) }\]
 2 years ago

cpattison Group TitleBest ResponseYou've already chosen the best response.0
oh okay. sorry for that.
 2 years ago

Hero Group TitleBest ResponseYou've already chosen the best response.0
And now the 3x  7 reduces to: \[\frac{ 2(5x+2) }{(3x+7) }\]
 2 years ago

CliffSedge Group TitleBest ResponseYou've already chosen the best response.0
@andriod09 "extremesovermeans" dw:1349575148786:dw
 2 years ago

Hero Group TitleBest ResponseYou've already chosen the best response.0
I already know about means over extremes. I was just trying to explain it in a way that @andriod09 should have already been familiar with.
 2 years ago

CliffSedge Group TitleBest ResponseYou've already chosen the best response.0
(It's the same thing . . )
 2 years ago

andriod09 Group TitleBest ResponseYou've already chosen the best response.0
I don't understand it.... \[:{\]
 2 years ago

Hero Group TitleBest ResponseYou've already chosen the best response.0
You ignored the part where I said something "he should have already been familiar with".
 2 years ago

CliffSedge Group TitleBest ResponseYou've already chosen the best response.0
Meditate on it.
 2 years ago

CliffSedge Group TitleBest ResponseYou've already chosen the best response.0
I ignored nothing.
 2 years ago

Hero Group TitleBest ResponseYou've already chosen the best response.0
Normal students other than @Cliffsedge learn how to change division to multiplication by flipping the second fraction.
 2 years ago

CliffSedge Group TitleBest ResponseYou've already chosen the best response.0
It's the same thing . . .
 2 years ago

CliffSedge Group TitleBest ResponseYou've already chosen the best response.0
dw:1349575395748:dw
 2 years ago

Hero Group TitleBest ResponseYou've already chosen the best response.0
I know that bro, but you should have registered that I was trying to show the poor kid something he should have already been familiar with. Ask the majority of students at a school what means over extremes mean and they'll give you a blank stare.
 2 years ago

cpattison Group TitleBest ResponseYou've already chosen the best response.0
http://www.khanacademy.org/math/arithmetic/fractions/v/dividingfractions this could help. he's great
 2 years ago

CliffSedge Group TitleBest ResponseYou've already chosen the best response.0
Anyway, I was merely offering a method that might have been recognized. It wasn't, carry on.
 2 years ago

CliffSedge Group TitleBest ResponseYou've already chosen the best response.0
@Hero , but did you notice that I didn't just pop in and say, "extremesovermeans, yo!" and leave? I gave a formula that should be immediately recognized by the more modern phrasing of "keepflipchange." I'll just leave now, because I don't want you to continue derailing the thread just to bark at me.
 2 years ago

Hero Group TitleBest ResponseYou've already chosen the best response.0
I'm not a dog, so unfortunately I don't know how to bark.
 2 years ago

cpattison Group TitleBest ResponseYou've already chosen the best response.0
none of that helps. @andriod09 is there anything else?
 2 years ago

andriod09 Group TitleBest ResponseYou've already chosen the best response.0
yea. i would like to understand how to work the stupid fraction problem. :{
 2 years ago

cpattison Group TitleBest ResponseYou've already chosen the best response.0
did khan help at all?
 2 years ago

Hero Group TitleBest ResponseYou've already chosen the best response.0
I could have sworn I just showed you. I suppose now you need help with factoring and reducing polynomials.
 2 years ago

andriod09 Group TitleBest ResponseYou've already chosen the best response.0
cp, i don't havethe time for khan, but yes, Sam is a really good tutor. i have been to that site nealy a year now. And Hero, YES PLEASE.
 2 years ago

andriod09 Group TitleBest ResponseYou've already chosen the best response.0
@Hero are you still here??
 2 years ago

satellite73 Group TitleBest ResponseYou've already chosen the best response.1
\[\frac{\frac{30x^2+27x+6}{9x^249}}{\frac{30x+15}{30x70}}=\frac{30x^2+27x+6}{9x^249}\times \frac{30x70}{30x+15}\]
 2 years ago

satellite73 Group TitleBest ResponseYou've already chosen the best response.1
factor and cancel if you can
 2 years ago

jiteshmeghwal9 Group TitleBest ResponseYou've already chosen the best response.2
A type of complex fraction\[\huge\frac{\frac{30x^2+27x+6}{9x^249}}{\frac{30x+15}{30x70}}\]\[\LARGE{\frac{30x^2+27x+6}{9x^249} \div \frac{30x+15}{30x70}}\]\[\LARGE{\frac{30x^2+27x+6}{9x^249} \times \frac{30x70}{30x+15}}\]
 2 years ago

satellite73 Group TitleBest ResponseYou've already chosen the best response.1
for example \(9x^249=(3x+7)(3x7)\)
 2 years ago

andriod09 Group TitleBest ResponseYou've already chosen the best response.0
ENGLISH PLEASE. K'THANKS
 2 years ago

satellite73 Group TitleBest ResponseYou've already chosen the best response.1
and \(30x70=10(x7)\) etc etc. there will be an orgy of cancellation
 2 years ago

andriod09 Group TitleBest ResponseYou've already chosen the best response.0
can you please type that in English for me, step by step?
 2 years ago

andriod09 Group TitleBest ResponseYou've already chosen the best response.0
@jiteshmeghwal9 2 things, 1) i luv your prof pic, 2) what do i do after all that> I dont get... :{
 2 years ago

jiteshmeghwal9 Group TitleBest ResponseYou've already chosen the best response.2
bro first factor the numerators & denominators of both fractions then tell me what do u gt ?
 2 years ago

andriod09 Group TitleBest ResponseYou've already chosen the best response.0
how do i do that?
 2 years ago

jiteshmeghwal9 Group TitleBest ResponseYou've already chosen the best response.2
what u haven't studied factorization yet
 2 years ago

jiteshmeghwal9 Group TitleBest ResponseYou've already chosen the best response.2
without studying factorization u can't do this question :(
 2 years ago

andriod09 Group TitleBest ResponseYou've already chosen the best response.0
not for fractions. i can factor \[x^2+10x+20\] easily. just not for fractions. plus, im homeschooled, so things aren't the same for me.
 2 years ago

jiteshmeghwal9 Group TitleBest ResponseYou've already chosen the best response.2
so factor \[30x^2+27x+6\]
 2 years ago

jiteshmeghwal9 Group TitleBest ResponseYou've already chosen the best response.2
@andriod09
 2 years ago

andriod09 Group TitleBest ResponseYou've already chosen the best response.0
\[30x^2+27x+6\] should i find a comon factor? because i don't think there is one. buy anyway. isn't it: \[2(5x+2)\]
 2 years ago

jiteshmeghwal9 Group TitleBest ResponseYou've already chosen the best response.2
\[ax^2+(a+b)x+b\]use this identity
 2 years ago

andriod09 Group TitleBest ResponseYou've already chosen the best response.0
thas makes no sense to me. :/
 2 years ago

jiteshmeghwal9 Group TitleBest ResponseYou've already chosen the best response.2
i mean break the middle term such that the sum becomes 27x & product becomes \(30x^2*6\)
 2 years ago

andriod09 Group TitleBest ResponseYou've already chosen the best response.0
but was the answer right? it should be right.
 2 years ago

jiteshmeghwal9 Group TitleBest ResponseYou've already chosen the best response.2
but after multiplying that u r not getting the right exression
 2 years ago

jiteshmeghwal9 Group TitleBest ResponseYou've already chosen the best response.2
\[30x^2+15x+12x+6\]\[15x(2x+1)+6(2x+1)\]\[(15x+6)(2x+1)\]
 2 years ago

andriod09 Group TitleBest ResponseYou've already chosen the best response.0
ohhh. okay. Thanks!
 2 years ago

jiteshmeghwal9 Group TitleBest ResponseYou've already chosen the best response.2
\[(3x)^2(7)^2\]\[(3x+7)(3x7)\]
 2 years ago

jiteshmeghwal9 Group TitleBest ResponseYou've already chosen the best response.2
\[30x70\]\[10(3x7)\]
 2 years ago

jiteshmeghwal9 Group TitleBest ResponseYou've already chosen the best response.2
\[30x+15\]\[15(2x+1)\]
 2 years ago

andriod09 Group TitleBest ResponseYou've already chosen the best response.0
TYSVM i get it now!
 2 years ago

andriod09 Group TitleBest ResponseYou've already chosen the best response.0
i g2g. Bye!
 2 years ago

jiteshmeghwal9 Group TitleBest ResponseYou've already chosen the best response.2
\[\frac{(15x+6)(2x+1)15(2x+1)}{(3x+7)(3x7)10(3x7)}\]
 2 years ago

jiteshmeghwal9 Group TitleBest ResponseYou've already chosen the best response.2
bye & thanx for liking my profile profile pic
 2 years ago
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