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Anonymous
Easy just multiply by 2 you have 8/18 and so on.
Wiki User
equivalent fraction for 20 over 45 = 4/9
8/18
4/9 is equal to 4:9 the ratio.
3/4
1/4
2/9
4/9
It is 1/4
the answer is 32/72
It is: 9/12 = 3/4