Select all ratios equivalent to 16:12

See below.

Step-by-step explanation:

You can reduce a ratio just like you reduce a fraction. Divide both numbers by the same number.

Divide 16 and 12 by 4.

16:12 = 4:3

Now to get equivalent ratios, multiply both numbers, 4 and 3, by the same number.

4:3 = 8:6 = 12:9 = 16:12 = 20:15 = 24:18 = 28:21 = 32:24 = 36:27 = 40:30, etc.

4:2, 8:6, 12:8

Step-by-step explanation:

I believe this is correct.

I don't really know. Haven't done that in a long time.