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OpenStudy (meilendurcer):
Which ratios form a proportion? A. 4/12, 6/8 B. 16/12, 3/4 C. 3/2, 15/14 D. 10/16, 5/8
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OpenStudy (anonymous):
The ones that are equal. You can cross-multiply to check.
OpenStudy (meilendurcer):
i can't do that
OpenStudy (anonymous):
Why not?
OpenStudy (anonymous):
Can you convert each pair to fractions with common denominators? That's another effective way.
OpenStudy (meilendurcer):
it would take forever and its too late i need this in by today
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OpenStudy (anonymous):
You can look them over quickly to see if a fraction reduces to the other one. You can also eliminate some obviously wrong answers, e.g. if one fraction is an improper fraction and the other is a proper fraction, then they definitely can't be equal to each other.
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