Math, asked by suryaansh29, 1 year ago

The denominator of a rational number is 4 more than the numerator. If 2 is added to the numerator and 3 is added to the denominator then the new number becomes 3/4. Find the original number.​


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Answers

Answered by heermehta4657
2

Answer:

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Answered by Sauron
6

Answer:

The Original Number is \tt{\dfrac{13}{17}}

Step-by-step explanation:

Given :

Denominator of the Rational Number is = 4 more than the numberator

When 2 is added to the numerator and 3 is added to the denominator new rational number = \tt{\dfrac{3}{4}}

To find :

The Original Number

Solution :

Let the -

  • Numerator be as y
  • Denominator as (y + 4)

\boxed{\tt{\frac{y + 2}{(y + 4) + 3}  =  \frac{3}{4}}}

 \sf{\implies} \: \frac{y + 2}{(y + 4) + 3}  =  \frac{3}{4}

\sf{\implies} \: \frac{y + 2}{y +7}  =  \frac{3}{4}

\sf{\implies} \:4(y + 2) = 3(y + 7)

\sf{\implies} \:4y + 8 = 3y + 21

\sf{\implies} \:4y - 3y = 21 - 8

\sf{\implies} \:y = 13

Numberator = 13

\rule{300}{1.5}

Value of (y + 4)

\sf{\implies} \:13 + 4

\sf{\implies} \:17

Denominator = 17

Rational Number = \boxed{ \tt{\dfrac{13}{17}}}

\therefore The Original Number is \tt{\dfrac{13}{17}}

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