683
1) 7/8; 3/4; 1/2
7/8; 6/8; 4/8
4/15; 1 1/5
4/15; 1 3/15
3 1/2; 1 2/3
3 3/6; 1 4/6
7 3/8; 5/12
7 9/24; 10/24
3 1/5; 2 1/3
3 3/15; 2 5/15
2/3; 1 3/4; 5 1/2; 7 5/6
8/12; 1 9/12; 5 6/12; 7 10/12
2)0,7 и 0,75
70/100 и 75/100
1,405 и 0,45
1 405/1000 450/1000