17/36
Пошаговое объяснение:
1) 3. 5/9 + (-2. 1/4) = 3. 5/9 - 2. 1/4 = 3. 20/36 - 2. 9/36 = 1. 11/36
2) 1. 11/36 - (-4. 5/6) = 1. 11/36 + 4. 5/6 = 1. 11/36 + 4. 30/36 = 5. 41/36
3) 5. 41/36 - 5. 2/3 = 5. 41/36 - 5. 24/36 = 17/36
17/36
Пошаговое объяснение:
1) 3. 5/9 + (-2. 1/4) = 3. 5/9 - 2. 1/4 = 3. 20/36 - 2. 9/36 = 1. 11/36
2) 1. 11/36 - (-4. 5/6) = 1. 11/36 + 4. 5/6 = 1. 11/36 + 4. 30/36 = 5. 41/36
3) 5. 41/36 - 5. 2/3 = 5. 41/36 - 5. 24/36 = 17/36