hej proszę o rozwiązanie tego przykładu:4+5 2/5+2 1/4 =?????
4+5 2/5 + 2 1/4 = 9 2/5 + 2 1/4 = 9 8/20 + 2 5/20 = 11 13/20
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4+5 2/5 + 2 1/4 = 9 2/5 + 2 1/4 = 9 8/20 + 2 5/20 = 11 13/20