SOLUTION: Add 147°41'28" + 27°20'21"? Express 142.04° without a decimal?

[Note: to make a degree symbol °, be sure NumLock is on and lit.  Hold down
the Alt key with your left hand while typing 248 on the number key-pad
way on the far right side of your keyboard.  When you let up the Alt key
the ° will magically appear on the screen.  Don't use the number keys
above the number keys.  They won't work.  You have to use the number keys
on the far right side of the keyboard.]  

 147°41'28" 
+ 27°20'21"
 174°61'49"

Since the number of minutes is 60 or more, we borrow 60' from
the 61 minutes, leaving it with 1', change the 60' we borrowed
to 1° and add it to the degrees, making it 175°. so we have:

 147°41'28" 
+ 27°20'21"
 174°61'49"
 175° 1'49"

Write down the whole part of 142.04, which is 142 followed by 
a degree symbol "°":

142°

Multiply the decimal part of 142.04, which is .04, by 60, 
getting 2.4. Beside the degree symbol write down that whole part 
of 2.4, which is 2 followed by a minute symbol "'".  So far you 
have:

142°2'

Multiply the decimal part of 2.4, which is .4, by 60, 
getting 24. Beside the minute mark write down 24 
followed by a second symbol """.  So you end up with

142°2'24"

Edwin