The numerator of a fraction is 9 and the denominator is 6. all of the following numbers are equivalent except

a) 2/3
b)3/2
c)1 1/2
d)18/12

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

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