Question

Oblicz:

a) 2/3 liczby 3 i 3/4

b) 1 i 1/3 liczby 2 i 7/8

----------------------------------------------

Oblicz:

a) 3 i 1/2 x (2 i 1/4 - 1 i 1/2 : 6) =

b) 5 i 2/9 - 1 i 1/6

--------------------------

3 i 2/3 x (1 i 1/4 - 1/2) =

Answer 1

Oblicz: 

 

a)

2/3 liczby 3 i 3/4=2/3* 3 i 3/4= 2/3* 15/4(upraszczam)= 1*5/2=5/2=2 i 1/2 

 

b)

1 i 1/3 liczby 2 i 7/8 = 4/3*23/8(upraszczam)= 1/3*23/2=23/6= 3 i 5/6

 

Oblicz:

 

a)

3 i 1/2 x (2 i 1/4 - 1 i 1/2 : 6) =3 i 1/2*(2 i 1/4- 3/2:6)=3 i 1/2*(2 i 1/4 -3/2*1/6)= 3 i 1/2 * (2 i 1/4-3/12)= 3 i 1/2* (2 i 3/12-3/12)= 3 i 1/2*2=7

 

 

b)

5 i 2/9 - 1 i 1/6                     

 --------------------------    = 

3 i 2/3 x (1 i 1/4 - 1/2) 

 

 

 

5 i 4/18 - 1 i 3/18

------------------------- =

3 i 2/3 * ( 1 i 1/4 - 2/4)

 

 

5 i 1/18

______________________ =

 3 i 2/3 *(5/4-2/4)

 

 

91/18

--------------------------- =

 11/3* 3/4

 

 

91/18

--------- = 91/18 * 4/11= 182/99 

11/4