Which ratio is equal to 14 84?

To find an equivalent ratio to 14:84, we need to simplify the ratio by finding the greatest common divisor (GCD) of 14 and 84.

The factors of 14 are 1, 2, 7, and 14.

The factors of 84 are 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, and 84.

The greatest common divisor of 14 and 84 is 14.

Now, we divide both parts of the ratio by the GCD:

14 ÷ 14 = 1

84 ÷ 14 = 6

So the simplified ratio is $\boxed{1:6}$.