23/24 · х - 1 (11/12) = 5 (3/4)
23/24 · х = 5 (3/4) + 1 (11/12)
23/24 · х = 5 (9/12) + 1 (11/12)
23/24 · х = 6 (20/12)
23/24 · х = 92/12
х = 92/12 : 23/24
х = 92/12 · 24/23
х = (4·2)/(1·1)
х = 8
ответ: число 8.
Проверка:
23/24 · 8 - 1 (11/12) = 5 (3/4)
23/3 - 23/12 = 5 (3/4)
92/12 - 23/12 = 5 (3/4)
69/12 = 5 (3/4)
5 (9/12) = 5 (3/4) - верно.
23/24 · х - 1 (11/12) = 5 (3/4)
23/24 · х = 5 (3/4) + 1 (11/12)
23/24 · х = 5 (9/12) + 1 (11/12)
23/24 · х = 6 (20/12)
23/24 · х = 92/12
х = 92/12 : 23/24
х = 92/12 · 24/23
х = (4·2)/(1·1)
х = 8
ответ: число 8.
Проверка:
23/24 · 8 - 1 (11/12) = 5 (3/4)
23/3 - 23/12 = 5 (3/4)
92/12 - 23/12 = 5 (3/4)
69/12 = 5 (3/4)
5 (9/12) = 5 (3/4) - верно.