- 1 1/2.
Пошаговое объяснение:
(3/5-4/5-1/3): 1 1/3•5+0,9:1,8 = - 1 1/2.
1. 3/5-4/5-1/3 = 9/15 - 12/15 - 5/15 = - 8/15;
2. - 8/15 : 1 1/3 = - 8/15 ·3/4 = - (8·3)/(15·4) = - (2·1)/(5·1) = - 2/5;
3. - 2/5 ·5 = - 2;
4. 0,9:1,8 = 9 : 18 = 1/2;
5. - 2 + 1/2 = - (2 - 1/2) = - 1 1/2.
- 1 1/2.
Пошаговое объяснение:
(3/5-4/5-1/3): 1 1/3•5+0,9:1,8 = - 1 1/2.
1. 3/5-4/5-1/3 = 9/15 - 12/15 - 5/15 = - 8/15;
2. - 8/15 : 1 1/3 = - 8/15 ·3/4 = - (8·3)/(15·4) = - (2·1)/(5·1) = - 2/5;
3. - 2/5 ·5 = - 2;
4. 0,9:1,8 = 9 : 18 = 1/2;
5. - 2 + 1/2 = - (2 - 1/2) = - 1 1/2.