Odpowiedzi

2009-09-08T18:22:55+02:00
1)10 8/9 - 4 7/8 + 5/6= 98/9 + 39/8 = (98*8+39*9)/(9*8) = 1135/72
2)4 1/2 + 6 3/4 - (12-5 3/8)= 9/2+ 27/4 - (12- 43/8) = (18+27)/4- (96-43)/8 = 45/4+ 53/8 = (90+53)/8= 143/8
3)4 5/6 + 2 1/2 - 3 2/3 +5 1/12= 29/6+ 5/2 -11/3+61/12 = (29*2+5*6-11*4+61)/12 = (58+30-44+61)/12 = 105/12