Question

Oblicz:

(-2 2/3):1,2=

2/3:(-6)=

(-0,45):1 4/5=

(-2,75):(-2,2)=

(-3,5):(-1 2/5)=

Answer 1

1.(-2 i 2/3):1,2=

 

= (-8/3) : 1 i 2/10=

 

= (-8/3) : 12/10=

 

= (-8/3) * 10/12=  (skracam 8 z12)

 

= (-2/3) * 10/3=

 

= -20/9=

 

= - 2 i 2/9

 

2.

2/3:(-6)=

 

= 2/3 * (-1/6) =  (skracam 2 z 6)

 

= 1/3 * (-1/3)=

 

= - 1/9

 

3.

(-0,45):1 i 4/5=

 

= (-45/100) : 9/5=

 

= (-45/100) * 5/9 = (skracam 45 z 9 oraz 100z 5)

 

= (-5/20) * 1/1=

 

= - 5/20=

 

= - 1/4

 

4.(-2,75):(-2,2)=1,25

 

5.

(-3,5):(-1 i 2/5)=

 

= (-3 i 5/10) : (-7/5)=

 

= (-35/10) * ( -5/7) = ( skracam 35 z 7 oraz 10 z 5)

 

= (-5/2) * (-1/1)=

 

= 5/2=

 

= 2 i 1/2

 

Miałam to samo i jest dobrze

 

Answer 2

(-2 2/3):1,2= (-2 2/3): 1 2/10= (-8/3)x 10/12= - 20/9 = - 2 2/9

2/3:(-6)= 2/3x(-1/6)=-2/18=-1/9

(-0,45):1 4/5=

(-2,75):(-2,2)=(-27,5):(-22)=1,25

(-3,5):(-1 2/5)= -3 5/10:(-1 2/5)=-35/10x(-5/7)=2 7/14= 2 1/7