what number mulitplied by the numerator and added to the denominator of 4/9 makes the resulting fraction equilavent to 7/4?? the number is?

- anonymous

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- anonymous

@ArkGoLucky

- anonymous

um I don't think this is possible because the numerator of the first fraction is not changed so it can't equal the second fraction. ever

- anonymous

4 does not equal 7

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## More answers

- anonymous

it dosent' have a answer box for not a answer

- anonymous

@jim_thompson5910

- anonymous

I have no idea either

- anonymous

oh wait nvm, there is an answer. The number just has to be a fraction

- anonymous

ok.

- anonymous

Is there a box for a fraction?

- anonymous

yea

- anonymous

okay cool

- anonymous

do u know it? lol

- anonymous

okay got

- anonymous

it

- anonymous

so here's what you do
so make an equation
say x is the number you're looking for
try to think of a way you can make an equation using x

- anonymous

ask if you need help

- anonymous

I'll give you a hint
use 4x

- anonymous

ok so what do i do now with the 4x?

- anonymous

is the answer going to be 2? @ArkGoLucky

- anonymous

not quite. I'll just show you the equation. So you know that the number x, when multiplied by the numerator(4) then added to the denominator(9) equals 7/4
That means 4/9+4x=7/4

- anonymous

so 7/4 is the answer or do i solve that?

- anonymous

no, now you solve for x, which is the number you're looking for

- anonymous

i got 47/144?

- anonymous

is that right or wrong?

- anonymous

almost

- anonymous

the numerator is right except it's a negative and the denominator is wrong

- anonymous

how did i get the denominator wrong?

- anonymous

did you solve x in\[\frac{ 4 }{ 9+4x }=\frac{ 7 }{ 4 }\]

- anonymous

yea and i got that big fraction

- anonymous

try plugging in your answer into that equation

- anonymous

okay I'll show you how to solve for x
multiply both sides of the equation by the common denominator. In this case, it is (4)(9+4x)
this is to rid of the fractions

- anonymous

when you do this, you get 16=7(9+4x)
I'm sure you can solve for x now

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