Sujet: cancellation liste de sujets
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	Divide and reduce to lowest terms.		2009-09-06
		Karen pose la question : Divide and reduce to lowest terms. Use the cancellation technique as needed 4 2/3 divided by 12 14/3 divided by 12/1 not sure wheer to go from here with the cancellation technique Penny Nom lui répond.
	Cross multiplication		2000-02-16
		J E Swinton pose la question : Why does cross multiplication work? How come canceling work? Penny Nom lui répond.

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