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 Related Terms
 Reciprocal Property:  For two ratios, if a/b = c/d, then b/a = d/c.
Canceling Property: When a common factor can be found in both the denominator and the numerator of an expression, the common factor can be "factored out," or "cancelled."
Cross-product Property: For two ratios, if a/b = c/d, then ad = bc.