Răspuns:
1.
a)4,5=45/10=9/2
b)7,82=782/100=391/50
c)9,123=9123/1000
2.
a)1/2=0,5
b)7/10=0,7
c)7/5=1,4
d)10/8=1,25
e)30/25=1,2
f)8/125=0,064
g)2/3=0,(6)
h)1/6=0,1(6)
3.
1 întreg 2/5=7/5=1,4
1 întreg 1/3=4/3=1,(3)
17/12=1,41(6)
0,(121)<0,(12)<0,1(212)<1,(13)<1,25<1,(3)<1,4<1,41(6)
4.
7->(-7)
1/2->(-1/2)
(-8)->8
(-10/3)->10/3
5.
|5|=5
|-9|=9
|-3/7|=3/7
|8/9|==8/9
