Answer:
3 7777/10000
Step-by-step explanation:
[tex]3\frac{7}{9}[/tex]
[tex]3.777...=3+0.777...[/tex]
[tex]0.777...=x\\7.777...=10x[/tex]
[tex]10x-x=7.777...-0.777...\\9x=7\\x=\frac{7}{9}[/tex]
The answer is [tex]3\frac{7}{9}[/tex]