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Poroszę o rozpisywanie a nie tylko wuniki:
a) -4*(2 1/8)=
b) -3 1/7: 11=
c)2 1/4 : (1 1/2)=
d) -1,21 +5,1=
e) -3,24 * (-0,2)=
f) 0,24 : (-0,4)=
g) 2 3/4* (-0,5) =
h) -2,3-1/3=
i) -3,75 : (-1 1/4)=
j) 1/3: (-0,7)=
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a) -4 * 17/8 = 17/2 = 8 1/2
b) -3 1/7 : 11 = -22/7 * 1/11 = 2/7
c) 2 1/4 : 1 1/2 = 9/4 * 21/3 = 3/2 = 1 1/2
d) -1,21 + 5,1 = 3,89
e) -3,24 * (-2) = 0,648
f) 0,24 : (-04) = 0,6
g) 2 3/4 * (-0,5) = 11/4 * 1/2 = 11/8 = 1 3/8
h) -2,3 - 1/3 = -23/10 - 1/3 = 69/30 - 10/30 = 59/30 = 1 29/30
i) -3,75 : (-1 1/4) = -15/4 * 4/5 = 3
j) 1/3 : (-0,7) = 1/3 * 10/7 = 10/21