Answer:

Step-by-step explanation:
Given expression:

To evaluate the expression. 
Solution.
The values are
 
   
Let  -----------1
 -----------1                   
Multiplying 10 both sides.
 ----------2
----------2
Subtracting 1 from 2.
  
- 
-------------------------------------------

Dividing both sides by 9.



Let 
Multiplying both sides by 100
 ------------3
------------3
Multiplying 1000 both sides.
 ----------4
----------4
Subtracting 3 from 4.
  
- 
-------------------------------------------

Dividing both sides by 900.


So, we can evaluate the given expression as:
⇒ 
⇒  
    
⇒ 
Taking LCD = 900
⇒ 
⇒ 
Adding numerators.
⇒ 
⇒ 
⇒  (Answer)
 (Answer)