6 4/7 to the nearest whole number
so when rounding numbers, if the decimal or fraction part is 1/2 or .5 or more then you round up 6 and 4/74/77-4=34>3 so4/7 is more than 1/2 so you round 6 and 4/7 up to 7
\(6\frac{4}{7}\\\\\frac{4}{7} > \frac{1}{2}=\frac{4}{8}\\\\therefore\ round\ the\ number\ UP\\\\\boxed{6\frac{4}{7}\approx7}\leftarrow answer\)