Question

pls solve this question​

Answer 1

Answer:

It will get shortened into 12/99 + 1/9 ( 0.12 bar converts into 12/99)

and (0.1 bar converts 1/9)

Now take LCM, it will be 99

now we can convert into

12/99 + 11/99

23/99

which is the required answer.