Question

Q4. The
numerator of a rational number is 4
less than denominator if 1 is added to numerator and denominator both the rational number becomes 1/2. find the rational number​

Answer 1

Step-by-step explanation:

Let the denominator of the rational no. be x.

Then, numerator (n)=x−4

Add 1 to both numerator and denominator,

Denominator = x+1 and Numerator =x−4+1=x−3

⟹

x+1

x−3

=

8

1

⟹8x−24=x+1

⟹7x=25

x=

7

25

Numerator =

7

25

−4=

7

25−28

=

7

−3

Rational number =

7

−3

×

25

7

=

25

−3