Question

Are the ratios 6:18 and 2:6 equivalent?

Answer 1

Yes because 6/18=1/3 and 2/6=1/3. Then 6/18=2/6

Answer 2

Treat them like fractions. Ratios are just fractions in a different form.

$\frac{6}{18} and \frac{2}{6}$

You can simplify 6/18. Find common factors. 2, 3, 6

Let's try and divide the top and bottom (numerator and denominator) by 3.
Then you get 2/6.
2/6 is equivalent to 2/6