Question

znajdz liczbe x a)x razy 4/7=9/11

b)x:6/13=4/9

c)x:3cale1/6=1cala2/3

zad 9

(3cale3/5+2cale4/5):6/7=

b)3/4:4cale1/2+7:1cala1/6=

c)3/5:(1cala1/2-3/4)=

prosze o szybkie odpowiedzi daje najlepsze

Answer 1

a)

x=9/11 : 4/7

x=63/44

spr:63/44 * 4/7= 11/9

 

b)

x=6/13 * 4/9

x=8/39

spr:8/39 * 6/13=4/9

 

c)

x=3całe1/6 * 1całe 2/3

x=5całe5/18

 

 

 

zad.9

a)=7całe 14/30

b)6całe 1/6

c)4/5

Answer 2

a). x razy 4/7= 9/11

x= 9/11 :4/7

x=9/11*7/4

x=63/44

 

b). x:6/13=4/9

x=4/9*6/13

x=24/117

x=8/39

 

 

 

 

 

c). x:3 i 1/6 = 1 i 2/3

x: 19/6 = 5/3

x=5/3*19/6

x=95/18

x=5 i 5/18

 

zad.9

( 3 i 3/5+ 2 i 4/5):6/7= 5 i 7/5  : 6/7=32/5*7/6=224/30=7 i 14/30

b) 3/4: 4 i 1/2+7:1 i1/6= 3/4*2/9 +7*6/7 = 1/6+6= 6 i 1/6

c) 3/5:(1 i 1/2-3/4)=3/5:(1 i 2/4-3/4)=3/5:(6/4-3/4)=3/5:3/4=3/5*4/3=12/15=4/5