№1213.
1)
7 : 10 = 70/100 = 0,7
13 : 100 = 13/100 = 0,13
91 : 1000 = 91/1000 =0,091
109 : 1000 = 109/1000 = 0,109
33 : 1000 = 33/1000 = 0,033
7 : 10010 = 7/10010 = 0,0007
2) 21 : 10 = 21/10 = 2ц 1/10 = 2,1
119 : 100 = 119/100 = 1ц 19/100 = 1,19
893 : 10 = 893/10 = 89ц 3/10 = 89,3
4911 : 1000 = 4911/1000 = 4ц 911/1000 = 4,911
672 : 100 = 627/100 = 6ц 27/100 = 6,27
517 : 10 = 510/10 = 51ц