1.

twice the numerator is 2 more than the denominator if 3 is added to each the numerator and denominator then a fraction is 2 by 3 find the original number.​

Answer»

\mathfrak{\large{\underline{\underline{Answer :-}}}}

The Original Fraction is {\bf{\dfrac{7}{12}}}

\mathfrak{\large{\underline{\underline{Explanation :-}}}}

Given :

TWICE the numerator = 2 more than the Denominator

3 is ADDED to numerator and Denominator = Fraction is \tt{\dfrac{2}{3}}

To Find :

The Original fraction

SOLUTION :

Consider the numerator as x

Denominator = 2x - 2

\green{\boxed{\tt{\red{\frac{x + 3}{(2x - 2) + 3} =  \frac{2}{3}}}}}

\tt{\implies} \: \dfrac{x + 3}{(2x - 2) + 3} =  \dfrac{2}{3}

\tt{\implies} \:3(x + 3) = 2(2x - 2 + 3)

\tt{\implies} \:3x + 9 = 4x - 4+ 6

\tt{\implies} \:3x + 9 = 4x   + 2

\tt{\implies} \:4x - 3x= 9 - 2

\tt{\implies} \:x = 7

\rule{300}{1.5}

Value of 2x - 2

\tt{\implies} \: (7 \times 2) - 2

\tt{\implies} \: 14 - 2

\tt{\implies} \: 12

Numerator = 7

Denominator = 12

Fraction = \boxed{\boxed{\bf{\dfrac{7}{12}}}}

\therefore The Original Fraction is {\bf{\dfrac{7}{12}}}

\rule{300}{1.5}

\mathfrak{\large{\underline{\underline{Verification :-}}}}

Add 3 to the numerator and Denominator to see whether the new fraction formed is \tt{\dfrac{2}{3}}

\tt{\implies} \:  \dfrac{7 + 3}{12 + 3}  =  \dfrac{2}{3}

\tt{\implies} \:  \dfrac{10}{15}  =  \dfrac{2}{3}

Reduce the Fraction

\tt{\implies} \:  \dfrac{10 \div 5}{15 \div 5}  =  \dfrac{2}{3}

\tt{\implies} \:  \dfrac{2}{3}  =  \dfrac{2}{3}

\therefore The Original Fraction is {\bf{\dfrac{7}{12}}}



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