Answer:
Yes
6:4 simplified is 3:2
9:6 simplified is 3:2
Or another way to do it
By multiplying each ratio by the second number of the other ratio, you can determine if they are equivalent. Multiply both numbers in the first ratio by the second number of the second ratio.
multiply 6 by 9 and 4 by 6 to get 54:24
and if it can simplify then they are equivalent
Hope it helps