October 2018 2 13 Report

Oblicz i sprawdź: 1) 2 5/13 -1 6/13 2)8 2/21- 3 5/21 3) 16 1/3-7 2/3 4) 10 5/9 -3 8/9 Prosze o wytłumczenie i o ''obliczenia'' (np.2-5/7=7/7-5/7=1 2/7)


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