Convert 64.32° into degrees, minutes, and seconds.

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''.