Решите многоэтажные дроби: 1/2*2/3: 1/34,5/8: 3/4*1/2,1: 1/2*1/6,2/5*3/4: 15

1/2 * 2/3 : 1/34 = 11 1/3

1) 1/2 * 2/3 = 2/6 = 1/3

2) 1/3 : 1/34 = 1/3 * 34/1 = 34/3 = 11 1/3

5/8 : 3/4 * 1/2 = 5/12

1) 5/8 : 3/4 = 5/8 * 4/3 = 5/6

2) 5/6 * 1/2 = 5/12

1 : 1/2 * 1/6 = 1/3

1) 1 : 1/2 = 1 * 2/1 = 2

2) 2 * 1/6 = 2/6 = 1/3 

2/5 * 3/4 : 15 = 0,02 (или 1/50)

1) 2/5 * 3/4 = 3/10 = 0,3

2) 0,3 : 15 = 0,02

или 3/10 : 15/1 = 3/10 * 1/15 = 1/50