Question

Choose all the ratios below that are equivalent to 18, colon, 3018:30.
Answer
Attempt 1 out of 2
54, colon, 9054:90
3, colon, 53:5
9, colon, 159:15
15, colon, 915:9
90, colon, 5490:54

Answer 1

18:30 = 18/30 = 3/5 (divide numerator & denominator by 6).

Check each option:
- 54:90 = 54/90 = 3/5 → equivalent
- 3:5 = 3/5 → equivalent
- 9:15 = 9/15 = 3/5 → equivalent
- 15:9 = 15/9 = 5/3 → not equivalent
- 90:54 = 90/54 = 5/3 → not equivalent

So the equivalent ratios are: 54:90, 3:5, and 9:15.