Question

Select all ratios equivalent to 12:4.

Answer 1

First simplify: 12:4 = (12 ÷ 4):(4 ÷ 4) = 3:1.

So any ratio of the form 3k:1k (for k ≠ 0) is equivalent. Examples:
- 3:1
- 6:2
- 9:3
- 15:5
- 24:8
- 30:10

(And any pair where the first number is three times the second.)