Question

3.
The numerator of a rational number is 4 less than the denominator f 1 is added
the numerator and denominator both the rational number becomes 1/2 find the
rational number.​

Answer 1

Answer:

Step-by-step explanation:

Let x be the numerator and y be the donominator

We know the y-4=x (given )

Y-x=4........(1)

X+1/y+1=1/2

2x+2/y+1=0

2x+2=y+1

2x-y+1=0

2x-y=-1........(2)

Now (2)+(1)

2x-y=-1

-x+y=4

So we get

X = 3

Give the x value in (1). Before that make the equation easier

So I made the equation into = x+4=y

3+4=y

7=y