Question

1.które z podanych ułamków maja rozwiniecia dziesietne skonczone

2/3 13/2 5/9 3/7 7/3 11/20

2. 2/3 +5/7=

2,315 +1,2=

1/4+1/5=

12+5/17+7 13/17=

0,285+0,48=

0,6218+24=

3.wykonaj odejmowanie

20-3/8=

14 2/5 -3/5 =

6/7-3/4=

4,254-2,13=

58,27-5,827=

7,3-3,449=

Answer 1

2 i 2/3 +  5/7 = 2 i 14/21 + 15/21 = 2 I 29/21 = 3 I 8/21 

 

2,315 + 1,2 = 3,515 

 

1/4 + 1/5 = 5/20 + 4/20 = 9/20 

 

12 + 51/7  + 13/17 = 12 I 18/17 = 13 I 1/17 

 

0,285 + 0,48 = 0,765 

 

- - - - - - - - 

 

20 - 3/8 = 19 I 5/8 

 

14 I 2/5 - 3/5 = 13 I 7/5 - 3/5 = 13 I 4/5 

 

6/7 - 3/4 = 24/28 - 21/28 = 3/28 

 

4,254 - 2,13 = 2,124 

 

58,27 - 5,827 = 52,443 

 

7,3 - 3,449 = 3,851

Answer 2

1.

13/2

11/20

 

2.

2/3 + 5/7= 14/21 + 15/21=  29/21= 1 i 8/21

 

2,315 + 1,2 = 3,515

 

1/4 +1/5= 5/20 +4/20=9/20

 

12+5/17+7 13/17=20 1/17

 

0.285+0.48= 0,765

 

0,6218+24=24,6218

 

3.

 

20-3/8= 19 5/8

 

14 2/5 -3/5 =13 4/5

 

6/7-3/4=24/28-21/28= 3/28

 

4,254-2,13=2,124

 

58,27-5,827=52,443

 

7,3-3,449= 3,851