The method you learned is fine, if you query google for (51+26/60+13.57/3600) you get (51.4371028), and same for -(2+34/60+38.55/3600), where you get (-2.577375). On some programming languages you have to be careful with which, when given integer parameters, truncs the result of the operation (in which case you want to cast the divisor or the dividend to floating point).
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.