Math, asked by aminansari9308093080, 7 months ago

The numerator of a fraction is 6 less
than the denominatos. If 1 is added
to both numeratos and denominatos,
it becomes half, then find the for
fraction​

Answers

Answered by vikram991
42

Given,

  • The numerator of a fraction is 6 less than the denominator .
  • When we 1 is added to the both numerator and denominator then its becomes 1/2 .

To Find,

  • The Fraction

Solution,

⇒Suppose the numerator be x

And Suppose the denominator be y

Therefore,

\boxed{\bold{\red{The \ Farction = \dfrac{x}{y}}}}

According to the First Condition :-

  • The numerator of a fraction is 6 less than the denominator .

\implies \boxed{\sf{x = y - 6}}

According to the First Condition :-

  • When we 1 is added to the both numerator and denominator then its becomes 1/2 .

\implies \sf{\dfrac{x + 1}{y + 1} = \dfrac{1}{2}}

\implies \sf{2(x + 1) = 1(y + 1)}

\implies \sf{2x + 2 = y + 1}

\implies \sf{2x - y  = 1 - 2}

\implies \sf{2x - y = -1}

\implies \sf{2(y - 6) - y = -1}

(Put the value of x From the First Condition)

\implies \sf{2y - 12 -y = - 1}

\implies \sf{y = - 1 + 12}

\implies \boxed{\sf{y = 11}}

Now Put the Value of y in First Condition :-

\implies \sf{x = y - 6}

\implies \sf{x = 11 - 6}

\implies \boxed{\sf{x = 5}}

Therefore,

\boxed{\bold{\purple{The \ Fraction \ = \dfrac{x}{y} = \dfrac{5}{11}}}}

\rule{200}2

Answered by Anonymous
45

{\purple{\underline{\underline{\huge{\mathtt{Answer:}}}}}}

Given:

We have been given that the numerator of a fraction is 6 less than the denominator. If 1 is added to both numerator and denominator, it becomes half.

To Find:

We need to find the fraction.

Solution:

Let the numerator be x and denominator be y.

So, the fraction is x/y.

According to the question,

The numerator of the fraction is 6 less

than the denominator, so

x = y - 6_________(1)

Now, it is also given that if 1 is added to both numerator and denominator, it becomes half,

So, the numerator becomes (x + 1) and denominator becomes (y + 1).

=> (x + 1)/(y + 1) = 1/2

=> 2(x + 1) = 1(y + 1)

=> 2x + 2 = y + 1

=> 2x - y + 2 = 1

=> 2x - y = 1 - 2

=> 2x - y = -1_______(2)

Substituting the value of x from equation 1 in equation 2 we have,

2(y - 6) - y = -1

=> 2y - 12 - y = -1

=> y - 12 = -1

=> y = -1 + 12

=> y = 11__________(3)

Now, substituting the value of y from equation 3 in equation 1 we have,

x = y - 6

=> x = 11 - 6

=> x = 5

Therefore numerator is 5 and denominator is 11.

Hence, the fraction is 5/11.

Similar questions