Question

19. The sum of the numerator and denominator of a fraction is 8. If 3 is
added to both of the numerator and the denominator, the fraction
becomes Find the fraction.​

Answer 1

Answer:

Given,Sn= 8

n=2

d=3

to find, a=?

Sn=n/2[2a+(n-1)d]

8=2/2[2×a+(2-1)3]

8=2a+3

8-3=2a

5=2a

a=2.5