17/32 - 5/12 =
11/28+9/14 = 
25/49 * 21/50 =
45/64 : 81/96 =​

Пошаговое объяснение:

17/32-5/12=51/96-40/96=11/96

11/28+9/14= 11/28+18/28=29/28=1 1/28

25/49*21/50=3/14

45/64:81/96=5/6

1. 11/96

2. 29/28

3. 3/14

4. 5/6

Пошаговое объяснение:

1. 51-40/96 = 11/96

2. 11+18/28 = 29/28

3. 1/7×3/2 = 3/14

4. 45/64×96/81. 45/64×32/27. 5/2×1/3 = 5/6