Пошаговое объяснение:
8.
(1 2/3)³•(3/5)²+(21,36-20,4):0,06-16 16/21=
=(5/3)³•9/25+0,96:0,06-16 16/21=
=125/27•9/25+16-16 16/21=
=5/3+16-16 16/21=
=(16-16)+(5/3-16/21)=35/21-16/21=19/21
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Пошаговое объяснение:
8.
(1 2/3)³•(3/5)²+(21,36-20,4):0,06-16 16/21=
=(5/3)³•9/25+0,96:0,06-16 16/21=
=125/27•9/25+16-16 16/21=
=5/3+16-16 16/21=
=(16-16)+(5/3-16/21)=35/21-16/21=19/21