Question

Zad 4

-11/6 + 37/10 =

33/16 - 35/6=

13/5 - 11/3 - 13/10=

13/6-(18/5+4/3)=

Zad 5

7/6:14/3=

12/5*(-15/7)=

-15/7:(-6/5*15/6)=

Zad 6

18/7*(-6/25)*35/36=

-9/8:(-6/5*15/6)=

Answer 1

zad 4

-11/6+37/10=-110/60+220/60=330/60=3 10/60=3 1/6

33/16-35/6=66/32-140/32=-74/32=-2 8/32= -2 1/4

13/5-11/3=39/15-55/15=-16/15= -1 1/15

13/6-(18/4+4/3)=13/6-(54/15+20/15)=13/6-74/15=195/90-444/90=-249/90=-2 69/90=-2 23/30

 

zad5

7/6*3/4=1/4

12/5*(-15/7)=-36/7=-5 1/7

-15/7:(6/5*15/6)= -15/7:(-3/1)=-5/7

 

zad6

18/7*(-6/25)*35/36=18/7*(-7/30)=-9/15=-3/5

-9/8:(-6/5*15/6)=-9/8*(-1/3)= 3/8

Answer 2

Zad 4

-11/6 + 37/10 =(-110/60)+222/60 =112/60=1 13/15

 33/16 - 35/6= 99/48- 280/48 = 181/48= 3 37/48

13/5 - 11/3 - 13/10= 78/30 - 110/30 - 39/30= - 71/30= -2 11/30

13/6-(18/5+4/3)= 65/30-(108/30 + 40/30)= 65/30- 148/30= - 83/30= -2 23/30

Zad 5

7/6:14/3=7/6*3/14=1/4 (zamieniam licznik z mianownikiem imnożę potem skracam)

12/5*(-15/7)=skracam =-36/7 = -5 1/7

-15/7:(-6/5*15/6)=-15/7:(-3)= -15/7*(- 1/3)=5/7

Zad 6

18/7*(-6/25)*35/36=skracamy =3/7*(-1/5)*7=-21/35=-3/5

-9/8:(-6/5*15/6)= skracamy w nawiasie =-9/8:(-3)=-9/8*(-1/3)=9/24= -3/8 

(bo minus razy minus daje plus)