Odpowiedź:
1 i 2/5 * 5/7 = 7/5 * 5/7 = 1
8/9 : 4/27 = 8/9 * 27/4 = 6
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Odpowiedź:
1 i 2/5 * 5/7 = 7/5 * 5/7 = 1
8/9 : 4/27 = 8/9 * 27/4 = 6