Пошаговое объяснение:
1 : х = 2 2/7
х = 1 : 2 2/7
х = 1 : 16/7
х = 1 * 7/16
х = 7/16
13 : х = 1 4/9
х = 13 : 1 4/9
х = 13 : 13/9
х = 13 * 9/13
х = 1 * 9/1
х = 9/1
х = 9
6 : х = 2 2/5
х = 6 : 2 2/5
х = 6 : 12/5
х = 6 * 5/12
х = 1 * 5/2
х = 5/2
х = 2 1/2
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Пошаговое объяснение:
1 : х = 2 2/7
х = 1 : 2 2/7
х = 1 : 16/7
х = 1 * 7/16
х = 7/16
13 : х = 1 4/9
х = 13 : 1 4/9
х = 13 : 13/9
х = 13 * 9/13
х = 1 * 9/1
х = 9/1
х = 9
6 : х = 2 2/5
х = 6 : 2 2/5
х = 6 : 12/5
х = 6 * 5/12
х = 1 * 5/2
х = 5/2
х = 2 1/2