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The numerator of a fraction is 8 less than the denominator of a fraction. The value of the fraction is 3/5, find the value of the fraction.

User Fah
by
5.7k points

2 Answers

6 votes


\LARGE{ \boxed{ \rm{ \orange{ Solution:}}}}

Let the numerator be x

It is given that,

  • Denominator - 8 = Numerator

Then,

⇛ Denominator- 8 = x

⇛ Denominator = x + 8

According to condition -2)

⇛ Fraction = 3/5

⇛ x/x + 8 = 3/5

Cross multiplying,

⇛ 3(x + 8) = 5x

⇛ 3x + 24 = 5x

⇛ 24 = 5x - 3x

⇛ 24 = 24

Flipping it out,

⇛ 2x = 24

⇛ x = 24/2 = 12

Then,

⇛ x + 8 = 12 + 8 = 20

  • Numerator = 12
  • Denominator = 20


\large{ \therefore{ \boxed{ \rm{ \pink{Then, \: the \: fraction = (12)/(20) }}}}}

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User Phen
by
5.5k points
1 vote

Hello!

Answer:


\huge\boxed{(12)/(20)}

To find the numerator and denominator, we can set up a proportion where:

x = denominator

x -8 = numerator


(3)/(5) = (x-8)/(x)

Cross multiply:


3(x) = 5(x - 8)


3x = 5x - 40

Simplify:


3x - 5x = -40\\\\-2x = -40\\\\x = 20

Substitute in this value of x to find the numerator and denominator:


((20) - 8)/((20)) = (12)/(20)

Hope this helped you! :)

User Kartikmaji
by
5.3k points