Respostas

2014-03-31T18:38:22-03:00
A )

x=0,166.......*(10)
10x=1,666...
10x=1+6/9
10x=15/9
90x=15

x=15/90
x=1/6

b )
0,242424...
24/99
x=8/33
1 5 1