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Najlepsza Odpowiedź!
2009-12-10T16:41:21+01:00
1.2/1*2/3*7/8-11/2=7/6-33/6=-26/6=-4 i1/3
b.8.5:30i 3/4
2009-12-10T16:51:33+01:00
A)(2 2/3 *7/8 -1 1/2):4/9=(8/3 * 7/8 - 1 1/2):4/9=(7/3 - 3/2)* 9/4= (14/6-9/6)* 9/4= 5/6 * 9/4=45/54= 13/18
b)5 1/6:(12*(15/6 + 3/4))=31/6: (12*(30/12 + 9/12))=31/6 :(12*39/12)= 31/6:39=31/6 * 1/39=31/134