Zastąp symbole odpowiednimi ułamkami prostymi.
7/9=...+...+...+
proszę o oblicznia
7/9= 1/2 + 1/6+ 1/9
9/18 + 3/18+ 2/18 = 14/18 = 7/9
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7/9= 1/2 + 1/6+ 1/9
9/18 + 3/18+ 2/18 = 14/18 = 7/9