Question

помогите пж эту задачку​

Answer 1

Пошаговое объяснение:

5/10 + 9/20 = 10/20 + 9/20 = 19/20

9. 7/3 - 3. 2/6 = 9. 7/3 - 3. 1/3 = 6. 6/3 = 6 + 2 = 8

6. 5/10 - 4/5 = 6. 5/10 - 8/10 = 5. 15/10 - 8/10 = 5. 7/10

7. 10/18 - 1. 9/9 = 7. 5/9 - 2 = 5. 5/9