IF ANGLE A = 36 27' 46" AND ANGLE B = 28 43' 39" , FIND ANGLE A + ANGLE B

  ANGLE A = 36 27' 46"
+ANGLE B = 28 43' 39"

so on normal addition individually, we get 36 + 28 = 64  , 27 + 43 = 70 ,  46 + 39 = 85
So   ANGLE A = 36 27' 46"
  +ANGLE B = 28 43' 39"
  =  64 70' 85"
Here the minute value is greater then 60, so subtract 60 from 70 , we get 10 and add 1 to degree, it get changed into 64 +1 = 65

So the value will be like this 65 10' 85

Here the second value is greater then 60, so subtract 60 from 85 , we get 15 and add 1 to minutes, it get changed into 10+1 =11
So the value will be 65 11' 15''
So the final answer is 65 11' 15''