SOLUTION: In a certain fraction, the numerator is 7 less than the denominator. If booth the numerator and denominator are increased by 2, the new fraction equals 4/11. What is the original f

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: In a certain fraction, the numerator is 7 less than the denominator. If booth the numerator and denominator are increased by 2, the new fraction equals 4/11. What is the original f      Log On


   

Question 1160140: In a certain fraction, the numerator is 7 less than the denominator. If booth the numerator and denominator are increased by 2, the new fraction equals 4/11. What is the original fraction?
Found 4 solutions by MowMow, josgarithmetic, MathTherapy, ikleyn:
Answer by MowMow(42) About Me  (Show Source):
You can put this solution on YOUR website!
N/D = (D-7)/D
(D-7+2) = (D-5)/(D+2)
2D=73
D = 73/2 which is not a whole number
Therefore, there is no solution.

Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
The fraction, %28d-7%29%2Fd

%28d-7%2B2%29%2F%28d%2B2%29=4%2F11, the description, sentence #2.
%28d-5%29%2F%28d%2B2%29=4%2F11
4d%2B8=11d-55
.
.
highlight_green%28d=9%29


The fraction is highlight%282%2F9%29 .

Answer by MathTherapy(10552) About Me  (Show Source):
You can put this solution on YOUR website!
In a certain fraction, the numerator is 7 less than the denominator. If booth the numerator and denominator are increased by 2, the new fraction equals 4/11. What is the original fraction?
I don't know why he/she came to the conclusion that there's no INTEGER value for the denominator.

The fraction you're looking for is: highlight_green%282%2F9%29

Very SIMPLE!! From resulting fraction, 4%2F11, SIMPLY subtract 2 from numerator and also denominator. Doesn't that give you matrix%281%2C3%2C+%284+-+2%29%2F%2811+-+2%29%2C+%22=%22%2C+2%2F9%29

Answer by ikleyn(52790) About Me  (Show Source):
You can put this solution on YOUR website!
.

@MowMow, it is clear from your post, that you are not able to solve simplest algebra problems correctly,
and are not able even read and interpret their condition in a right way.


I observed your contribution to the forum,

and with 179% confidence I can say that you have no necessary knowledge to be a Math tutor.

I ask you STOP posting to this forum.