Question

⅗ - (1,4 * 5/14 - 0,9/3²) : (-1/5)=

4/5 : (1/6 - 1/5) - (2/9 - (3/8 - 1 1/3)=

((-1 1/2)² - (-1 1/3)²):1 1/4=

Olbrzymie dzięki za pomoc!

Answer 1

⅗ - (1,4 * 5/14 - 0,9/3²) : (-1/5)=

= 3/5 - [7/5 *5/14 - 9/10*1/9] : (-3/2) =

= 3/5 - [ 1/2 - 1/10] *(-2/3) =

= 3/5 - [5/10 -1/10] *(-2/3) =

= 3/5 -  (4/10)*(-2/3) =

= 9/15 + 4/15 =

= 13/15

 

4/5 : (1/6 - 1/5) - (2/9 - (3/8 - 1 1/3)=

= 4/5 :(5/30- 6/30) - ( 2/9) - ( 9/24 - 32/24) =

= 4/5 : (-1/30) - (2/9) - (-23/24) =

= 4/5*(-30) -2/9 + 23/24 =

= -24 -2/9 +23/24 =

= -24 -   16/72 + 69/72 =

= -24 +53/72=

= - 23 i  19/72

 

((-1 1/2)² - (-1 1/3)²):1 1/4=

=[ 9/4 - 16/9] : (5/4 )=

= [ 81/36 - 64/36] *(4/5) =

= (17/36)*(4/5) =

= 17/45

Answer 2

3/5-(1i4/10*5/14-0,9/3):-1i5/10

3/5-(14/10*5/14-0,9/9):15/10

3/5-(1/2-1/10):3/2

3/5-(5/10-1/10):3/2

3/5-4/10:3/2

3/5-4/10*2/3

3/5-8/30

18/30-8/30=1/3

 

 

4/5:(1/6-1/5)-(2/9-(3/8-1i1/3))

4/5:(5/30-6/30)-(2/9-(9/24-32/24))

4/5:-1/30-(2/9-(-23/24))

4/5*-30-(2/9+23/24))

-24-(48/216+207/216)

-24-255/16

-24-15i15/16

-39i15/16

 

 

 

((-1i1/2)-(-1i1/3)²):1i1/4

((-3/2)²-(4/3)²):5/4

(9/4-16/9):5/4

(81/36-64/36):5/4

17/36:5/4

17/36*4/5=17/45