a)
x=0,(3) [/*10]
10x=3,(3)
10x-x=3,(3)-0,(3)
9x=3 [/:9]
x=1/3
b)
y=0,(15) [/*100]
100y=15,(15)
100y-y=15,(15)-0,15
99y=15 [/:99]
y=5/33
c)
x=0,1(5) [/*10]
10x=1,(5) [/*10]
100x=15,(5)
100x-10x=15,(5)-1,(5)
90x=14 [/:90]
x=7/45
d)
y=3,1(21) [/*10]
10y=31,(21) [/*100]
1000y=3121,(21)
1000y-10y=3121,(21)-31,(21)
990y=3090 [/:990]
y=103/33
y=3 i 4/33
