First, we already have 64°. We take out the remaining 0.32°.
The conversion factors necessary to answer this item are,
1° = 60'
1' = 60''
number of minutes = (0.32°)(60' / 1°) = 19.2'
We already have 19' and 0.2'.
number of seconds = 0.2' x (60'' / 1') = 12''
Thus, the answer is 64°19'12''.