1/10
Пошаговое объяснение:
1/7+n = 17/70
n = 17/70 - 1/7
n = 17/70 - 10/70 1/7*10 = 10/70
n = 7/70
n = 1/10
1/10
Пошаговое объяснение:
1/7+n = 17/70
n = 17/70 - 1/7
n = 17/70 - 10/70 1/7*10 = 10/70
n = 7/70
n = 1/10