Question

1. Sa se transforme fractiile ordinare in fracti zecimale finite.

17 1034 17 54
___ ; ____ ; ____ ; _____
10 100 1000 10000

2. Sa se tranforme fractiile zecimale in fractii ordinare

13,2 ;2,49 ;11,003 ;3,0004 ;5,7.

3. Transformati fractiile periodice:
1,(3) ; 2,(12) ; 0,(23) ; 2,1(3) ; 3,2(4) ; 4,9(03).

Tema e pe maine.

Urgent va rog frumos dau funda.

Va rog Cineva???

Answer 1

1.
17/10=1,7
1034/100=1,034
17/1000=0,017
54/10000=0,0054

2.
13,2=132/10
2,49=249/100
11,003=11003/1000
3,0004=30004/10000
5,7=57/10

3.
1,(3)=(13-1)/9=12/9 poti sa simplifici prin 3 -> 4/3
2,(12)=(212-2)/99=210/99=70/33
0,(23)=23/99
2,1(3)=(213-21)/90=192/90=64/30=32/15
3,2(4)=(324-32)/90=292/90=146/45
4,9(03)=(4903-49)/990=4854/990=2427/495

Answer 2

1) 17/10=1,7 ;1034/100=10,34 ; 17/1000=0,017 ;54/10000=0,0054  2)13,2=132/10  ;2,49=249/100 ;11,003=11003/1000 ;3,0004=30004/10000 ;5,7=57/10