Oblicz:
a)(-0.4)*(-5/12)=..
b)-2:-7=..
c)4.5*(-5/6)=..
d)5/7:(-3/7)=..
e)(-3/7)*7/9=..
f)(-0.75):(-9/16)=..
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a)(-4/10)* (-5/12)= 1/6
b) 2/7
c) 4,5* (-5/6)= 9/2 * (-5/6)= -15/2=7,5
d) 5/7 :-0,75 : (-9/16)= 3/4 * 16/9=4/3
e) -3/7 *7/9=-1/3
f) -0,75 :(-9/16)= 3/4 *(-16/9)= -4/3
a)(-0,4)*(-5/12)=(-4/10)*(-5/12)=20/120=1/6
b) -2:(-7)=2/7
c)4,5*(-5/6)=45/10*(-5/6)=9/2*(-5/6)=3/2*(-5//2)=-15/4
d) 5/7:(-3/7)=5/7*(-7/3)=-5/3=-1i2/3
e)(-3/7)*7/9=(-1/7)*7/3=-1/3
f)(-0,75):(-9/16)=(-3/4)*(-16/9)=4/3=1i1/3