Oblicz wartość wyrażenia i wpisz ją w luke. I.-1 i 3/5-1,6-(-2 i 1/5)= II.-3 i 1/4-(-2 i 1/2)-(-2,5)= III.-7+(-2,65)+(-0,35)= IV.4 i 2/3-(-5 i 1/2)-1 i 1/6=
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1) -1 3/5 - 1,6 - (-2 1/5) = -8/5 - 16/10 + 11/5 = -16/10 - 16/10 + 22/10 = -10/10 = -1
2) -3 1/4 - (-2 1/2) - (-2,5) = -13/4 + 5/2 + 25/10 = -65/20 + 50/20 + 50/20 = 35/20 = 1 15/20 = 1 3/4
3) -7 + (-2,65) + (-0,35) = -10
4) 4 2/3 - (-5 1/2) - 1 1/6 = 14/3 + 11/2 - 7/6 = 56/12 + 66/12 - 14/12 = 108/12 = 9