Odpowiedź:
(1 - 1/3) * a 4 + 1,(9)
----------------- : ---------------- =
1 - 1/2 1 - 1/4
(3/3 - 1/3) * 7 4 + 1 9/9
-------------------- : --------------- =
2/2 - 1/2 4/4 - 1/4
2/3 * 7 4 + 2
------------- : -------------- =
1/2 3/4
14/3 6
---------- : ---------- =
1/2 3/4
14/3 * 2/1 : 6 * 4/3 = 28/3 : 24/3 = 28/3 * 3/24 =
= 28/1 * 1/24 = 28/24 = 7/6
odp. A 7/6
Szczegółowe wyjaśnienie: