Răspuns :

Andreea16087id
7.
A) cu 2
B) cu 5
C)cu 8
D) cu 10

8.
A) 2/16=1/8
8/10=4/5
10/28=5/14
14/24=7/12

B)15/6=5/2
27/45=9/15
102/162=34/54
180/273=60/91

9.
14%=14/100= Simplificăm cu 2=7/50
25%=25/100 Simplificăm cu 25=1/4
32%=32/100=sinplificam cu 4=8/25
50%=50/100 sinplificam cu 50 =1/2


Succes!
Rebeka45id

Răspuns:

ex 7

a) 3/5 amplificat cu 2

b)3/5 amplificat cu 5

c) 3/5 amplificat cu 8

d) 3/5 amplificat cu 10

ex 8

a) 2/16 = 1/8 ; 8/10 = 4/5 ; 10/28 = 5/14 ; 14/24 = 7/12

b) 25/80=5/16 ; 15/45=3/9 ; 35/50= 7/10 ; 200/95= 40/19

c) 15/6=5/3 ; 27/45=9/15 ; 102/162= 34/54 ; 180/273=60/91

d) 250/30=25/3 ; 40/70=4/7 ; 300/170=30/17 ; 1010/110=101/11

ex 9.

a) 14%= 14/100 simplificam cu 2 => 7/50

b) 25/100 simplificam cu 25 => 1/4

c) 32/100 simplificam cu 4 => 8/25