Question

express in 0.2121 pq form

Answer 1

Answer:

Step-by-step explanation:

Let x = 0.212121... —————- Eq 1

As there 2 terminating digits after the point , Mutiply the 1st equation with 100

therefore 100x = 21.212121.........————Eq 2

Subtract Eq 1 from Eq 2

  100x = 21.212121.......

(-)      x =   0.212121......

=         99x = 21

          x= 21/99 ; p/q = 21/99.