приведите подобные слагаемые:2/3у+48+2 целых 1/7 у-51;
-0,09а-13,01b+0,9а+0,19b
41целая3/11n+m-8целых4/11n-22.2m
-0,09а-13,01b+0,9а+0,19b
41целая3/11n+m-8целых4/11n-22.2m
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2/3у+48+2 целых 1/7 у-51=(2•7)/(3•7)у+ 2 (1•3)/(7•3)у + 48- 51=
14/21у+ 2 3/21у - 3=
2 17/21у -3.
-0,09а-13,01b+0,9а+0,19b=
0,9а-0,09а- (13,01b-0,19b)=
0,81a-12,82b.
41целая3/11n+m-8целых4/11n-22.2m =
41 3/11n - 8 4/11n - (22,2m-m)=
40 14/11n- 8 4/11n - 21,2m=
32 10/11n- 21,2m