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I already asked this question but I don't think anyone saw it.

Which ratios can form a proportion?
A. 20\25 , 14\21
B. 10\23 , 18\7
C. 5\45 , 4\36
D. 5\4 , 4\5

Any help would be awesome :)

Answers

Answered by Ms. Sue
Simplify each fraction
20/25 = 4/5
14/21 = 2/3
Nope -- they don't form a proportion

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