3 weeks of "experience" here...and I say that loosely...

Currently, my COINBASE dashboard shows me holding "x" number of LTC.  My GDAX dashboard shows me holding "y" number of LTC.

If I look at the two dashboards and add them together (x + y), I should see that total in my COINTRACKING summary...correct?  (note:  I am excluding the very slight rounding errors in this question).  Unless:

*  I made an entry error in entering a transaction someplace.
*  or...the "rounding error" is VERY significant
*  or...as I always entered the time based on "HR:MIN:SEC" with seconds = 00 (matching my receipts) and this is problematic given the second to second fluctuation in coin pricing.

Basically, I am trying to use COINBASE to "balance my COINBASE and GDAX checkbook."  And I am off by 1.42 LTC at the moment...which bothers me...

Does anyone have any advice/suggestions/comments?

Thanks for the help to the "newb"       

Regards,

crypto4smp