Answer:
45:12, 90:24, and 135:36
Explanation:
These are the answers because:
1) Finding equivalent ratios is the same way of finding equivalent fractions.
2) We could multiply 45 and 12 with 2
45 x 2 = 90
12 x 2 = 24
Then, you get the ratio 90:24
Hope this helps! :D