Ответ:
Пошаговое объяснение:
х : 12/13 = 15/128 : 15/52
х * 15/52 = 12/13 * 15/128
15/52х = 3/13 * 15/32
15/52х = 45/416
х = 45/416 : 15/52
х = 45/416 * 52/15
х = 3/8 * 1/1
х = 3/8
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Ответ:
Пошаговое объяснение:
х : 12/13 = 15/128 : 15/52
х * 15/52 = 12/13 * 15/128
15/52х = 3/13 * 15/32
15/52х = 45/416
х = 45/416 : 15/52
х = 45/416 * 52/15
х = 3/8 * 1/1
х = 3/8