Question

The numerator of a fraction is 4 less than the denominator.If 1 is added to both its numerator and denominater,it becomes 1/2.Find the fraction.

Answer 1

Answer:

this was the whole explanation

Answer 2

Answer:

required number is 3/7.

Step-by-step explanation:

Let x and y be the numerator and denominator respectively then according to the question we have the following equations:

-> x = y - 4 ..............(1)

->.

$\frac{x + 1}{y + 1} = \frac{1}{2} \\ \\ 2(x + 1) = 1(y + 1) \\ \\ 2x + 2 = y + 1 \\ \\ 2x = y + 1 - 2 = y - 1 \\ \\ 2x = y - 1...........(2)$

Let substitute the value of x from 1 in 2.

Then we will have

$2(y - 4) = y - 1 \\ \\ 2y - 8 = y - 1 \\ \\ 2y - y = 8 - 1 \\ \\ y = 7...........(3)$

Now substituting 3 in 1

x = y-4. =7-4=3.

The required number is 3/7.

I hope you are clear if not just comment me Mark me as the brainiest.