Question

Proszę o obliczenie ćw 20 str 14 klasa 6 matematyka 6

a) 4 5/9 + 2 1/3 razy 4 1/2

b) 5 1/7 razy 1 4/9 - 6 : 4 1/2

Answer 1

a) 4 5/9+2 1/3*4 1/2=

=41/9+7/3*9/2=

=41/9+21/2=

=82/18+189=

=271/18=

=15 1/18

 

b) 5 1/7*1 4/9-(6:4 1/2)=

=36/7*13/9-(6:9/2)=

=156/21-(6*2/9)=

=156/21-(2/3)=

=156/21-14/21=

=142/21=

=6 16/21

 

Sądzę, że pomogłem i liczę na naj...

Answer 2

a.)

4 5/9 + 2 1/3 * 4 1/2 =

4 5/9 + 7/3*9/2=

4 5/9+ 63/6=

4 5/9+ 10 1/2 =

4 10/18 + 4 9/18=

8 19/18=

9 1/18

 

b.)

5 1/7* 1 4/9 - 6/ 4 1/2=

36/7* 13/9 - 6/1/ 9/2=

468/63 - 6/1* 2/9=

7 27/63 - 12/9=

7 9/21 - 1 1/3=

7 9/21 - 1 7/21=

6 2/21

 

 

Proszee

 

 

dostane naj ? =D