Question

Ex 1 si 2 Va rog!!
Dau de toate!!!

Answer 1

1) a) 0,(3)=3/9=1/3

2,(3)=(23-2)/9=21/9= 7/3

4,(62)=(462-4)/99=458/99

5,(73)=(573-5)/99=568/99

1,(54)=(154-1)/99= 153/99=17/11

2,(123)= (2123-2)/999= 2121/999=707/333

7,(5)=(75-7)/9=68/9

b) 0,1(6)=(16-1)/90=15/90=1/6

31,21(3)=(31213-3121)/900=28092/900(simplifici cu 12)=2341/75

5,04(17)= (50417-504)/9900= 49913/9900

3,142(3)=(31423-3142)/9000= 28281/9000=9427/3000

1,3(15)= (1315-13)/990=1302/990(simplifici cu 18)267/55

0,02(123)= (2123-2)/9990=2121/9990=707/3330

2)a) 12,(7)=( 127-12)/9=115/9

b) 0,12(6)= (126-12)/900=114/900(simplifici cu 6)=19/150

c) 1,3(12)= (1312-13)/990=1299/990=433/330