Unfortunately, there is a typo because there 
are two equal signs.  I will assume one of 
them must have been supposed to be a plus sign 
and you neglected to hold down the Shift key.
So your problem was either:

 or 

I'll assume it was the first:



Since one of the decimals  shows three
decimal places put a  on the end of the other
decimals so they will also have three decimal
places:



Now, in each term, move the decimal three
places to the right, so they will all become
whole numbers:



Add  to both sides:


 
Add  to both sides:



Divide both sides by :



Cancel the 's

 





Round to 3 decimal places



Edwin