Выполните действия 1) 7/27+16/27-19/27,2) 4 5/19-2 2/19+7 9/19,3)1-18/27,4) 6 2/9-4 5/9

7/27+16/27-19/27= 4/274 5/19-2 2/19+7 9/19= 9 12/191-18/27= 27/27-18/27= 9/27= 1/36 2/9-4 5/9= 5 11/9- 4 5/9= 1 6/9= 1 1/3