№1.
1) 2,075 = 2 75/1000 = 2 3/40
2) 4,004 = 4 4/1000 = 4 1/250
3) 5,064 = 5 64/1000 = 5 8/125
4) 17,0075 = 17 75/10000 = 17 3/40
5) 43,008 = 43 8/1000 = 43 1/125
№2.
1) 1/2 = 5/10 = 0,5
2) 2/5 = 4/10 = 0,4
3) 3/10 = 0,3
4) 9/20 = 45/100 = 0,45
5) 8/25 = 32/100 = 0,32
6) 13/50 = 26/100 = 0,26