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I need help on a Factoring problem. Its factoring a fraction, on top of another factoring fraction. Its in the comments
 one year ago
 one year ago
I need help on a Factoring problem. Its factoring a fraction, on top of another factoring fraction. Its in the comments
 one year ago
 one year ago

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andriod09Best ResponseYou've already chosen the best response.0
\[\huge\frac{\frac{30x^2+27x+6}{9x^249}}{\frac{30x+15}{30x70}}\]
 one year ago

SmoothMathBest ResponseYou've already chosen the best response.0
The size of those fraction bars is important. The top two appear to be the same length, and the third is smaller. Correct?
 one year ago

strawberry17Best ResponseYou've already chosen the best response.0
To factor the numerator of the top fraction, you would divide each number by 3 and get: 3(10x^2 + 9x +2)
 one year ago

andriod09Best ResponseYou've already chosen the best response.0
no, the fracton bar on the top is supposed to be in the middle, i.e. it should be the top fraction normal bar, then solid black bar, then bottom fraction normal. @strawberry17 how would i do that?
 one year ago

SmoothMathBest ResponseYou've already chosen the best response.0
\(\Huge \frac{30x^2+27x+6}{9x^249} \div\frac{30x+15}{30x70}\) \(\Huge =\frac{30x^2+27x+6}{9x^249} *\frac{30x70}{30x+15}\)
 one year ago

andriod09Best ResponseYou've already chosen the best response.0
its supposed to be: \[\frac{30x^2+27x+6}{9x^2−49}\] over with the solid black line, \[\frac{30x+15}{30x−70}\]
 one year ago

SmoothMathBest ResponseYou've already chosen the best response.0
Like I put, Andriod?
 one year ago

andriod09Best ResponseYou've already chosen the best response.0
i don't understand what you did.
 one year ago

SmoothMathBest ResponseYou've already chosen the best response.0
One fraction divided by another fraction.
 one year ago

andriod09Best ResponseYou've already chosen the best response.0
i don't know. i tried to put it like it is in the book. thats what it says,
 one year ago

andriod09Best ResponseYou've already chosen the best response.0
yes, but i get very confused with fraction.
 one year ago

SmoothMathBest ResponseYou've already chosen the best response.0
Okay, Andriod, when we divide by a fraction, it's the same as multiplying by the reciprocal. That is, \(\div 2\) is the same as \(\large *\frac{1}{2}\) \(\large \div\frac{2}{3}\) is the same as \(\large *\frac{3}{2}\)
 one year ago

SmoothMathBest ResponseYou've already chosen the best response.0
etc. So when we see \(\huge\div \frac{30x+15}{30x70}\) it's easier for us if we rewrite it as \(\huge *\frac{30x70}{30x+15}\)
 one year ago

andriod09Best ResponseYou've already chosen the best response.0
ik that much, but i don't know what to do wit hthe FRACTIONS, i.e. i know the KFC method, but what/how do i factor the fraction?
 one year ago

strawberry17Best ResponseYou've already chosen the best response.0
@andriod09 do you understand how I factored out 3 from the numerator of the top fraction?
 one year ago

SmoothMathBest ResponseYou've already chosen the best response.0
What does KFC stand for?
 one year ago

andriod09Best ResponseYou've already chosen the best response.0
K=keep F=flip C=change @strawberry17 i have not a clue.
 one year ago

SmoothMathBest ResponseYou've already chosen the best response.0
Andriod, look for a common factor. With \(30x^2 + 27x + 6\) you can notice that 30=3*10 27= 3*9 6= 3*2 so they have a common factor of 3.
 one year ago

SmoothMathBest ResponseYou've already chosen the best response.0
I agree, Strawberry. Rewriting it is good, but it's good to keep it factored as it is.
 one year ago

andriod09Best ResponseYou've already chosen the best response.0
i don't understand. \[:(\]\[:L\]\[:/\]
 one year ago

andriod09Best ResponseYou've already chosen the best response.0
yes. i undertand what factoring is. I don't konw how to factor a fraction. hence, why this post is here.
 one year ago

andriod09Best ResponseYou've already chosen the best response.0
FACTORING A FRACTION IS ALL I DO NOT KNOW. I KNOW HOW TO FACTOR SOMETHING LIKE THIS: \[x^2+327\]
 one year ago

SmoothMathBest ResponseYou've already chosen the best response.0
Factoring a fraction is not different from factoring normally. Just look at the top and factor it normally. Then look at the bottom and factor it normally.
 one year ago

andriod09Best ResponseYou've already chosen the best response.0
I DON'T KNOW HOW. :/
 one year ago

andriod09Best ResponseYou've already chosen the best response.0
I DON'T KNOW HOW TO FACTOR A FRACTION.
 one year ago

andriod09Best ResponseYou've already chosen the best response.0
just tell me how to do this problem please, i am getting really annoyed.
 one year ago
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