Пошаговое объяснение:
1) 3 4/5 : 5 7/10 = 19/5 : 57/10 = 19/5 * 10/57 = 2/3
2) 2 2/3 : 1 7/9 = 8/3 : 16/9 = 8/3 * 9/16 = 3/2 = 1 1/2
4) 5 3/7 : 7 1/8 = 38/7 : 57/8 = 38/7 * 8/57 = 16/21
5) 4 8/15 : 1 9/25 = 68/15 : 34/25 = 68/15 * 25/34 = 10/3 = 3 1/3
Пошаговое объяснение:
1) 3 4/5 : 5 7/10 = 19/5 : 57/10 = 19/5 * 10/57 = 2/3
2) 2 2/3 : 1 7/9 = 8/3 : 16/9 = 8/3 * 9/16 = 3/2 = 1 1/2
4) 5 3/7 : 7 1/8 = 38/7 : 57/8 = 38/7 * 8/57 = 16/21
5) 4 8/15 : 1 9/25 = 68/15 : 34/25 = 68/15 * 25/34 = 10/3 = 3 1/3