Question

ME AJUDEMMM POR FAVORR
(UFRN) o valor de 3/0,666... + 0,222... vale;

Answer 1

3/0,666... + 0,222...

x = 0,666..
10x = 6,666...
10x = 6 + 0,666...
10x = 6 + x
10x - x = 6
9x = 6
x = 6/9

0,666.. = 6/9

0,222... = 2/9

3/6/9 + 2/9

= 3.9/6 + 2/9

= 9/2 + 2/9 mmc = 18

= (9.9 + 2.2)/18

= (81 + 4)/18

= 85/18 ou 4,72222....

Answer 2

3/0,666....+ 0,222...  =  3 : 6/9 + 2/9= 3. 9/6 + 2/9= 9/2 + 2/9=( 81 + 4 )/18= 85/18