Respuesta :

dalendrk
x = 0.6666....    |multiply both sides by 10

10x = 6.666...

10x - x = 6.666... - 0.666...

9x = 6      |divide both sides by 9

x = 6/9

x = 2/3

0.666... = 2/3

2/3 = 2/3 · 100% = 200/3% = 66 2/3 %