Question

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?

Answer 1

@ArkGoLucky

Answer 2

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

Answer 3

4 does not equal 7

Answer 4

it dosent' have a answer box for not a answer

Answer 5

@jim_thompson5910

Answer 6

I have no idea either

Answer 7

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

Answer 8

ok.

Answer 9

Is there a box for a fraction?

Answer 10

yea

Answer 11

okay cool

Answer 12

do u know it? lol

Answer 13

okay got

Answer 14

it

Answer 15

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

Answer 16

ask if you need help

Answer 17

I'll give you a hint
use 4x

Answer 18

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

Answer 19

is the answer going to be 2? @ArkGoLucky

Answer 20

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

Answer 21

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

Answer 22

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

Answer 23

i got 47/144?

Answer 24

is that right or wrong?

Answer 25

almost

Answer 26

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

Answer 27

how did i get the denominator wrong?

Answer 28

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

Answer 29

yea and i got that big fraction

Answer 30

try plugging in your answer into that equation

Answer 31

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

Answer 32

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