Question

which pairs of ratios form a proportion. choose all that apply.

A.1/6, 4/20
B.7/9, 28/36
C.14/18, 21/27
D.30/80/, 6/18

Answer 1

A proportion is kind of set up like this \[\frac{ 1 }{ 6 } = \frac{ 4 }{ 20 }\] so all you do for that is cross multiplying and seeing if the products get the same number.

Answer 2

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