SOLUTION: 17 -8 1/2 =

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Question 295607: 17
-8 1/2 =

Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Note: We can write 17 as 16%262%2F2 since 16%262%2F2=16%2B2%2F2=16%2B1=17

Using the note above, we can go from 

  17
-  8 1/2
---------



to 

  16 2/2
-  8 1/2
---------


Now just subtract the common parts. So 16-8=8 and 2%2F2-1%2F2=%282-1%29%2F2=1%2F2 meaning that 

  16 2/2
-  8 1/2
---------
   8 1/2



So this also means that 

  17
-  8 1/2
---------
   8 1/2