( - 1/2 ) ³ = ( - 1/8 )
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( 2 ( 11/12 ) - 4 ( 5/18 ) ) * ( - 1 ( 2/7 )) - ( - 3/4 ) ² =
1) 2 ( 11/12 ) - 4 ( 5/18 ) = 2 ( 33/36 ) - 4 ( 10/36 ) = 2 ( 33/36 ) - 3 ( 46/36 ) =
= - 1 ( 13/36 )
2) - 1 ( 13/36 ) * ( - 1 ( 2/7 )) = + ( 49/36 ) * ( 9/7 ) = 7/4
3) ( - 3/4 )² = 9/16
4) ( 7/4 ) - ( 9/16 ) = ( 28/16 ) - ( 9/16 ) = 19/16 = 1 ( 3/16 )
Ответ 1 ( 3/16 )