Verified answer

Пошаговое объяснение:

№1

1) 4 + 1/2 = 4 1/2

2) 3 : 4 1/2 = 3 : 9/2 = 3 * 2/9 = 6/9 = 2/3

3) 6 - 2/3 = 5 3/3 - 2/3 = 5 1/3

4) 4 : 5 1/3 = 4 : 16/3 = 4 * 3/16 = 12/16 = 3/4

5) 8 + 3/4 = 8 3/4

6) 7 : 8 3/4 = 7 : 35/4 = 7 * 4/35 = 28/35 = 4/5

7) 10 - 4/5 = 9 5/5 - 4/5 = 9 1/5

№2

1) 4 - 2/3 = 3 3/3 - 2/3 = 3 1/3

2) 2 : 3 1/3 = 2 : 10/3 = 2 * 3/10 = 6/10 = 3/5

3) 5 - 3/5 = 4 5/5 - 3/5 = 4 2/5

4) 11 : 4 2/5 = 11 : 22/5 = 11 * 5/22 = 55/22 = 5/2 = 2 1/2

5) 6 - 2 1/2 = 5 2/2 - 2 1/2 = 3 1/2

6) 7 : 3 1/2 = 7 : 7/2 = 7 * 2/7 = 14/7 = 2

7) 8 - 2 = 6