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  • Użytkownik Zadane
2010-04-15T14:33:09+02:00
8+(-3 1/5)+(-1 1/2)=8-3 1/5-1 1/2 = 8-3 2/10-1 5/10=3 3/10


(-2 1/3)+7+(-1 1/7)= -2 1/3 +7 - 1 1/7=-2 7/21+7 -1 3/21=-3 4/7 +7 =-3 3/7
2010-04-15T14:34:31+02:00
8-3 1\5-1,5=8-4,7=3,3
-2 1\3 + 7 -1 1\7=4 2\3 - 1 1\7=4 14\21 - 1 3\21=3 11\21
2010-04-15T14:34:48+02:00
1)
8-3 1/5 - 1 1/2 = 8 - 2/10 - 1 5/10 = 7 8/10 - 1 5/10 = 6 3/10

2)
-2 1/3 + 7 - 1 1/7 = 4 2/3 - 1 1/7 = 4 14/21 - 1 3/21 = 3 11/21