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Lewis, Robert – Australian Mathematics Teacher, 2016
When dividing one fraction by a second fraction, invert, that is, flip the second fraction, then multiply it by the first fraction. To multiply fractions, simply multiply across the denominators, and multiply across the numerators to get the resultant fraction. So by inverting the division of fractions it is turned into an easy multiplication of…
Descriptors: Fractions, Multiplication, Teaching Methods, Mathematics Instruction