CBSE BOARD X, asked by Kushev4915, 9 months ago

A fraction becomes 9/11 if 2 is added to both the nominator and denominator.if 3 is added to both the nominator and the denominator it becomes 5/6 find the fraction.

Answers

Answered by nOTsOcOOL
2

Answer:

>> Let the numerator of fraction be x and denominator be y.

>> A fraction becomes 9/11 if 2 is added to both the nominator and             denominator.

                          (x + 2)/(y + 2)   = 9/11

                          11* (x + 2) = 9* (y + 2)

                          11x - 9y + 4= 0  ] *6

                          66x - 54y + 24= 0             .....i

>> When 3 is added to both the nominator and the denominator it becomes 5/6.

                    (x + 3)/(y + 3)   = 5/6

                    6* (x + 3) = 5* (y + 3)

                    6x - 5y + 3 = 0 ] *11

                     66x - 55y + 33 = 0                       .....ii

>> Subtracting ii from i,

 we get,

                y - 9 = 0

               y  = 9

>> Putting value of y in i

 we get,

              x = 7.

>> Hence, Fraction is 7/9.

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