Rational numbers and commutative law

Thread starter bips2010
Start date Oct 23, 2010
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bips2010

Thread starter
Oct 23, 2010

How can i prove that addition and mulitiplication of rational numbers follow commutative and associative law?

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fzero

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Oct 23, 2010

If you can assume those properties for integers, then you might want to figure out how to incorporate multiplication by the common denominator for your rational expressions.

Rational numbers and commutative law

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Rational numbers and commutative law

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