1 3/4 [ (4/5 1/5 2 1/2) - (8 1/4 - 5/6 )] = -2 1/6
How to do it:
1 3/4 [ (4/5 1/5 2 1/2) - (8 1/4 - 5/6) ] =
1 3/4 [(1 2 1/2) - (8 1/4 - 5/6) =
1 3/4 [3 1/2 - (8 1/4 - 5/6)] =
1 3/4 [3 1/2 - (33/4 - 5/6)]=
1 3/4 [3 1/2 - ((33/4*6/6) - (5/6*4/4))] =
1 3/4 [3 1/2 - ((198/24) - (20/24))]=
1 3/4 [3 1/2 - (178/24)]=
1 3/4 [7/2 - 178/24]=
1 3/4 [(7/2*12/12) - 178/24] =
1 3/4 [84/24 - 178/24] =
1 3/4 [-94/24] =
1 3/4 [-3 22/24] =
1 3/4 [-3 11/12] =
1 3/4 - 3 11/12
(7/4*3/3) - 47/12 =
21/12 - 47/12 =
-26/12 =
-2 2/12 =
-2 1/6
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