Wykonaj działania tak bardziej rozpisane zeby bylo ; p
a; -4 * 2 i jedna 8
b; - 3 jedna siodma podzielic na 11
c; 2 i jedna czwarta podzielic na - 1 i jedna druga
d; - 1,21 + 5,1
e; -3,24 razy -0,2
f; o,24 podzielic na -0,4
g; 2 i trzy czwarte odjac -0,5
h; -2,3 odjac jedna trzecia
i; -3,75 podzilic na 1 i jedna czwarta
j; jedna trzecia podzilic na -0,7
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a) -4 * (2 i 1/8) = -4 * 17/8 = -1 * 17/2 = -17/2 = -8 i 1/2
b) -(3 i 1/7) : 11 = -(22/7) * (1/11) = -2/7 * 1 = -2/7
c) (2 i 1/4) : -(1 i 1/2) = (9/4) : -(3/2) = (9/4) * -(2/3) = 3/2 * -1 = -(3/2)
d) -1.21 + 5.1 = 5.1 - 1.21 = 3.89
e) -3.24 * -0.2 = -(324/100) * -(2/10) = -(162/50) * -(1/5) = -(81/25) * -(1/5) = 81/125
f) 0.24 : -(0.4) = 24/100 : -(4/10) = 24/100 * -(10/4) = 6/10 * -1 = -(6/10) = -(3/5)
g) (2 i 3/4) - 0.5 = 11/4 - 5/10 = 55/20 - 10/20 = 45/20
h) -2.3 - (1/3) = -(23/10) - (1/3) = -(69/30) - (10/30) = -(79/30)
i) -3.75 : (1 i 1/4) = -(3 i 3/4) : (5/4) = -(15/4) * (4/5) = -3
j) 1/3 : (-0.7) = 1/3 : -(7/10) = 1/3 * -(10/7) = -(10/21)