Question

the sum of the mlnumerator and denominator of a fraction is 8.Adding 5 to the numerator and denominator, the fraction become ½.find the fra​

Answer 1

Answer:

1/7

Step-by-step explanation:

Given, if taken a fraction, a/b, then

a+b=8   ------------- (i) also

(a+5)/(b+5) = 1/2  ------------ (ii)

(ii)  => 2 * (a+5) = b+5

    => 2a+10 = 8 - a + 5            from (i)

    => 2a+a = 13-10

    =>     3a = 3

    =>        a = 1

substitute a=1 in (i) , we get

  1+b = 8

=>   b = 8-1

=>   b = 7

so , the original fraction is 1/7