prosze o rozwiązanie tych przykładów.
1⅕ * 0,5
-0,75+1⅕
5,25/(-1½)
-5⅕-3,1
a) 1 1/5 * 0,5 = 1 1/5 * 1/2 = 6/5 * 1/2 = 3/5
b) -0,75 + 1 1/5 = -3/4 + 6/5 = -15/20 + 24/20 = 19/20
c) 5,25 : (-1 1/2) = 5 1/4 : (-1 1/2) = 21/4 : (-3/2) = 21/4 * (-2/3) = -7/2 = -3 1/2
d) -5 1/5 - 3,1 = -27/5 - 3 1/10 = -27/5 - 31/10 = -54/10 - 31/10 = -85/10 = 8 5/10 = 8 1/2
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a) 1 1/5 * 0,5 = 1 1/5 * 1/2 = 6/5 * 1/2 = 3/5
b) -0,75 + 1 1/5 = -3/4 + 6/5 = -15/20 + 24/20 = 19/20
c) 5,25 : (-1 1/2) = 5 1/4 : (-1 1/2) = 21/4 : (-3/2) = 21/4 * (-2/3) = -7/2 = -3 1/2
d) -5 1/5 - 3,1 = -27/5 - 3 1/10 = -27/5 - 31/10 = -54/10 - 31/10 = -85/10 = 8 5/10 = 8 1/2