Ответ:
1) 0,7+ 2/5 - 2/3 = 13/30 ;
2) 4 7/25+(18/25 - 4/15) = 4 11/15 ;
3) 4 6/17 -( 3 11/12+6/17 ) = 1/12 ;
4) 3,6-( 6/35+3/5 ) = 2 29/35;
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Ответ:
1) 0,7+ 2/5 - 2/3 = 13/30 ;
2) 4 7/25+(18/25 - 4/15) = 4 11/15 ;
3) 4 6/17 -( 3 11/12+6/17 ) = 1/12 ;
4) 3,6-( 6/35+3/5 ) = 2 29/35;