Answer: 66.67
Step-by-step explanation: To write a fraction as a percent, first remember that a percent is a ratio of a number to 100. If we want to write 6/9 as a percent, we need to find a fraction equivalent to 6/9 that has a 100 in the denominator. We can do this by setting up a proportion.
=

Now, we can use cross products to find the missing value.
9n = 600
÷9 ÷9
n = 66.67
Therefore, 6/9 can be written as 66.67%.