Question
The denominator of a fraction is greater than its numerator by 9. If 7 is subtracted from both its numerator and denominator, the new fraction equals 2/3. What is the original fraction?
Answers
Reiny
original numerator --- x
original denominator -- x+9
new numerator --- x-7
new denominator --- x+9-7 = x+2
(x-7)/(x+2) = 2/3
3x - 21 = 2x + 4
x = 25
original fraction = 25/34
new fraction (take 7 away from both
= 18/27
= 2/3
YEahh
original denominator -- x+9
new numerator --- x-7
new denominator --- x+9-7 = x+2
(x-7)/(x+2) = 2/3
3x - 21 = 2x + 4
x = 25
original fraction = 25/34
new fraction (take 7 away from both
= 18/27
= 2/3
YEahh
Emily
Thx u very much!
Anonymous
Noob