0,4
0,75
2,5
15
21
Пошаговое объяснение:
81/115 × 46/81 = 1/115 × 46/1 = 46/115 = 2/5
3/16 × 4 = 3/4 × 1 = 3/4
23 × 5/46 = 1 × 5/2 = 5/2 = 2целых 1/2
5/13 × 39 = 5/1 × 3 = 15/1 = 15
5 × 2целых 1/5 = 5 × 11/5 = 1 × 11/1 = 11/1 = 11
0,4
0,75
2,5
15
21
Пошаговое объяснение:
Пошаговое объяснение:
81/115 × 46/81 = 1/115 × 46/1 = 46/115 = 2/5
3/16 × 4 = 3/4 × 1 = 3/4
23 × 5/46 = 1 × 5/2 = 5/2 = 2целых 1/2
5/13 × 39 = 5/1 × 3 = 15/1 = 15
5 × 2целых 1/5 = 5 × 11/5 = 1 × 11/1 = 11/1 = 11