выполните действия
1) 3/7:5/6
2) 3/14:2/21
3) 7/16:42/43
4) 3/4:21/40
5) 9/25:27/50
6) 45/56:63/64
7) 2/3:1/6
8) 65/98:26/49
1) 3/7:5/6
2) 3/14:2/21
3) 7/16:42/43
4) 3/4:21/40
5) 9/25:27/50
6) 45/56:63/64
7) 2/3:1/6
8) 65/98:26/49
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