Question

what number must be added to both the numerator and the denominator of the fraction 1/5 to get a fraction equaling 3/4

Answer 1

11

Answer 2

how?

Answer 3

i got -11 but i dont understand why

Answer 4

\[\frac{1+x}{5+x}=\frac{3}{4}\]

Answer 5

then do you do
4(1+x) = 5 (3+x)

Answer 6

?

Answer 7

correct nikkysterr, solve for x to get the answer :)

Answer 8

yeah but i get -11

Answer 9

4 + 4x = 15 + 5x

Answer 10

4x = 11 + 5x

Answer 11

-1x = 11

Answer 12

x = -11?

Answer 13

That is because it's not 4(1+x) = 5 (3+x) it should be 4(1+x)= 3(5+x)

Answer 14

how about for 2/3 = 1/4

Answer 15

Now you should get 11 as the answer

Answer 16

\[\frac{2+x}{3+x}=\frac{1}{4}\]

Same method as the last one.

Answer 17

i get 4(2+x) = 1(3+x)

Answer 18

correct

Answer 19

but i get a -5/3

Answer 20

8+4x = 3 +1x

Answer 21

yes that's the answer

Answer 22

4x = -5 +1x
3x = -5

Answer 23

its suppose to be positive

Answer 24

not always, it just says it needs to be added.