the denomination of a fraction is one more than twice its numeration .if the sum of the fracton and its recciprocal is 32x .find the fraction.

Answer :

Answer:

3/7

Explanation:

Let the fraction be x/y.

Since the denominator is one more than twice the numerator, we can write:

y = 2x + 1

The sum of the fraction and its reciprocal is:

x/y + y/x = 32x

Simplifying the equation, we get:

(x^2 + y^2) / xy = 32x

Substituting y = 2x + 1, we get:

(x^2 + (2x + 1)^2) / x(2x + 1) = 32x

Solving the equation, we get:

x = 3

y = 2(3) + 1 = 7

So, the fraction is 3/7.

Answer:

Let the fraction be represented as \( \frac{n}{d} \), where \( n \) is the numerator and \( d \) is the denominator.

From the problem statement:

1. The denominator \( d \) is one more than twice the numerator \( n \):

\[ d = 2n + 1 \]

2. The sum of the fraction and its reciprocal is 32:

\[ \frac{n}{d} + \frac{d}{n} = 32 \]

Now substitute \( d = 2n + 1 \) into the second equation:

\[ \frac{n}{2n+1} + \frac{2n+1}{n} = 32 \]

To eliminate the fractions, find a common denominator which is \( n(2n+1) \):

\[ \frac{n^2 + (2n+1)^2}{n(2n+1)} = 32 \]

Expand \( (2n+1)^2 \):

\[ (2n+1)^2 = 4n^2 + 4n + 1 \]

So the equation becomes:

\[ \frac{n^2 + 4n^2 + 4n + 1}{n(2n+1)} = 32 \]

\[ \frac{5n^2 + 4n + 1}{n(2n+1)} = 32 \]

Cross-multiply to eliminate the fraction:

\[ 5n^2 + 4n + 1 = 32n(2n+1) \]

\[ 5n^2 + 4n + 1 = 64n^2 + 32n \]

Move all terms to one side to form a quadratic equation:

\[ 0 = 64n^2 + 32n - 5n^2 - 4n - 1 \]

\[ 0 = 59n^2 + 28n - 1 \]

Now, solve this quadratic equation using the quadratic formula \( n = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a} \), where \( a = 59 \), \( b = 28 \), and \( c = -1 \):

\[ n = \frac{-28 \pm \sqrt{28^2 - 4 \cdot 59 \cdot (-1)}}{2 \cdot 59} \]

\[ n = \frac{-28 \pm \sqrt{784 + 236}}{118} \]

\[ n = \frac{-28 \pm \sqrt{1020}}{118} \]

\[ n = \frac{-28 \pm 2\sqrt{255}}{118} \]

Simplify the expression for \( n \).

Once \( n \) is found, substitute back into \( d = 2n + 1 \) to find \( d \).

Finally, the fraction is \( \frac{n}{d} \).

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