13 - 8 5/12 = 13 - 8 - 5/12 = 5 - 5/12 = 60/12 - 5/12 = 55/1217 + 1/2 = 17 + 6/12 = 204/12 + 6/12 = 210/12 = 17 1/216 + 1/5 = 16 + 2/10 = 16 + 2/10 = 16 + 1/5
So, the expression becomes:
55/12 + 17 1/2 - 16 1/5= 55/12 + 35/2 - 81/5= (555)/(125) + 210/12 - 81/5= 275/60 + 350/60 - 648/60= (275 + 350 - 648)/60= -23/60
Therefore, the final result is -23/60.
13 - 8 5/12 = 13 - 8 - 5/12 = 5 - 5/12 = 60/12 - 5/12 = 55/12
17 + 1/2 = 17 + 6/12 = 204/12 + 6/12 = 210/12 = 17 1/2
16 + 1/5 = 16 + 2/10 = 16 + 2/10 = 16 + 1/5
So, the expression becomes:
55/12 + 17 1/2 - 16 1/5
= 55/12 + 35/2 - 81/5
= (555)/(125) + 210/12 - 81/5
= 275/60 + 350/60 - 648/60
= (275 + 350 - 648)/60
= -23/60
Therefore, the final result is -23/60.