Ответ:
3/7 к + 2/5 = 1
3/7 к = 1 - 2/5
3/7 к = 5/5 - 2/5
3/7 к = 3/5
к = 3/5 : 3/7
к = 3/5 * 7/3
к = 7/5
к = 1 2/5
Пошаговое объяснение:
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3/7 к = 1 - 2/5
3/7 к = 5/5 - 2/5
3/7 к = 3/5
к = 3/5 : 3/7
к = 3/5 * 7/3
к = 7/5
к = 1 2/5
Ответ:
3/7 к + 2/5 = 1
3/7 к = 1 - 2/5
3/7 к = 5/5 - 2/5
3/7 к = 3/5
к = 3/5 : 3/7
к = 3/5 * 7/3
к = 7/5
к = 1 2/5
Пошаговое объяснение: