(4 4/9х+3 1/3)х9+1/3х, если х=2 2/5
(4 4/9*2 2/5+3 1/3)*9+1/3*2 2/5=(40/9*12/5+10/3)*9+1/3*12/5=(32/3+10/3)*9+4/5=
=42/3*9+4/5=14*9+4/5=126 4/5
если -1/3х, то
(4 4/9*2 2/5+3 1/3)*9-1/3*2 2/5=(40/9*12/5+10/3)*9-1/3*12/5=(32/3+10/3)*9-4/5=
=42/3*9-4/5=14*9-4/5=126-4/5=125 1/5
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