Пошаговое объяснение:
1) 2/5:1/3= 6/5=1 1/5
2) 4/7:1/2=8/7 = 1 1/7
3) 5/6 : 3/8 = 20/9 = 2 2/9
4) 3 1/9 : 2 1/6 = 28/9 : 13/6=56/39 = 1 17/39
5) 1 5/12 : 2/15 = 85/8 = 10 5/8
6) 1/18 : 1 7/12= 2/57
Пошаговое объяснение:
1) 2/5:1/3= 6/5=1 1/5
2) 4/7:1/2=8/7 = 1 1/7
3) 5/6 : 3/8 = 20/9 = 2 2/9
4) 3 1/9 : 2 1/6 = 28/9 : 13/6=56/39 = 1 17/39
5) 1 5/12 : 2/15 = 85/8 = 10 5/8
6) 1/18 : 1 7/12= 2/57