решите срочно !!! пж пж. Created by dcjcenfjfbfjdh. matematika-ru

решите срочно !!! пж пж...

dcjcenfjfbfjdh @dcjcenfjfbfjdh

November 2021 1 6 Report

решите срочно !!! пж пж

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TigerYa

Verified answer

{5 1/3- 8} : 1 7/9=
{ (5•3+1)/3 - 8} : (1•9+7)/9=
{ 16/3- 8} : 16/9= { 16/3- 8}• 9/16=
16/3• 9/16- 8• 9/16=
Сокращаем 16 и 16 на 16; 3 и 9 на 3; 8 и 16 на 8;
1/1• 3/1- 1• 9/2= 3- 9/2=
3- 4 1/2= -( 4 1/2- 3)= - 1 1/2= -1,5

{ 2 5/9 - 3 2/3} • 0,45 =
{ (2•9+5)/9 - (3•3+2)/3} • 45/100=
Сокращаем 45/100 на 5;
{ 23/9- 11/3} • 9/20=
23/9• 9/20 - 11/3• 9/20=
Сокращаем 9 и 9 на 9; 3 и 9 на 3;
23/1• 1/20- 11/1• 3/20=
23/20 - 33/20=
-(33/20- 23/20)=-10/20=
сокращаем на 10;
-1/2= -0,5

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