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Автор - романье

 (1 7/18 -1 целая 17/30)* 25+2 2/9 *2,7.

срочна

Ответ

Автор - xy0de3na
(1 7/18-1 17/30)*25+22/9*2,7 = (25/18-47/30)*25 + 20/9*27/10 =
 (25*5-47*3)/90 *25+(20*27) /( 99*10)= -916*25)/ 90+6 = -40/9+6 = (40-54)/ 9 =
-14/9 = -1  5/9
 

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