1) 8 9/10 - 3 3/10 = (89 - 33) / 10 = 56/10 = 5 6/10 (=5,6)
2) 1 - 1/7 = 7/7 -1/7= (7-1)/7 = 6/7
3) 1 - 1/15 = 15/15 - 1/15 = (15-1)/15 = 14/15
4) 1 - 1/12 = 12/12 - 1/12 = 11/12
5) 1 - 2/9 = 9/9 - 2/9 = 7/9
38 делится на 2
2340 на 2
65400 на 2
75 на 3
1074393 на 3
2340 на 5
65400 на 5
75 на 5
2340 на 9
1074393 на 9
2340 на 10
65400 на 10
1) 1|5 + 1|9 + 1|3 = 29|45.
2) 1|2+3|5+2|3 = 1 23|30.
3) 5|6+1|4+3|8 = 1 11|24.
4) 5|9+1|6+3|4 = 1 17|36.