( 11/17 ) + ( 1/6 ) + ( 6/17 ) = ( 17/17 ) + ( 1/6 ) = 1 ( 1/6 )
-------------------------
( 4/5 + 3/25 ) - 8/25 = ( 4/5 ) + ( 3/25 ) - ( 8/25 ) = ( 4/5 ) - ( 5/25 ) = ( 4/5 ) - ( 1/5 ) =
= ( 3/5 )
---------------------
( 9/32 ) - ( 1/4 + 1/32 ) =( 9/32 ) + ( 1/32 ) - ( 1/4 ) = ( 10/32 ) - ( 1/4 )=
= ( 5/16 ) - ( 4/16 ) = 1/16