The numerator of a fraction is 5 less than the denominator. if 1 is added to both its neumerator and denominator, it becomes 1/2 find the fraction
Answers
✴ The numerator of a fraction is 5 less than the denominator. if 1 is added to both its neumerator and denominator, it becomes 1/2 .find the fraction.
➡ The Fraction obtained is 4/9.
Given :-
- The numerator of a fraction is 5 less than its denominator.
- If 1 is added to the numerator and denominator both , the fraction becomes 1/2.
To Find :-
- The Fraction obtained.
Calculation :-
Let denominator of the fraction be = x
And then numerator be (x – 5)
Original fraction = (x – 5)/x
According to the Question,
⇒ (x – 5 + 1)/(x + 1) = 1/2
⇒ (x – 4)/(x + 1) = 1/2
⇒ 2(x – 4) = (x + 1)
⇒ 2x-8 = x + 1
⇒ 2x-x = 1 + 8
⇒ x = 9
⇒ x = 9.
Original fraction = (x – 5)/x
Original fraction = ( 9 - 5 ) / 9
Original fraction = 4/9
Hence, the original Faction obtained is 4/9.
The numerator of a fraction is 5 less than the denominator. If 1 is added to both its numerator and denominator, it becomes 1/2. Find the fraction.
Let the denominator be "x."
And, Numerator be "x-5."
According To The Question,
The Equation :-
(x-5+1)/(x+1) = 1/2
➠ (x-4)/(x+1) = 1/2.
➠ x+1 = 2(x-4).
➠ x+1 = 2x-8.
➠ x-2x = -8-1
➠ -x = -9.
➠ x = 9.
If the value of x = 9, then the fraction :-
(x-5)/x = 4/9.