1/3x+3\4x-4\9x при x=1 целая 13\23; 9\46

Question

1/3x+3\4x-4\9x при x=1 целая 13\23; 9\46

Answer 1

uprostim virazhenie:

1/3 x +3/4 x -4/9 x=23/36 x.

a)pri x=1 13/23: (23/36)*1 13/23=(23/36)*(36/23)=1;

   Otvet:1.

b)pri x=9/46: (23/36)*(9/46)=1/8;

   Otvet: 1/8.

 

Answer 2

1/3х + 3/4х - 4/9х = 12/36х + 27/36х - 16/36х = 23/36х

При х = 36/23:

36/23 * 23/36 = 1.

При  х = 9/46:

9/46 * 23/36 = 1/8.

Ответ: 1; 1/8.