Ms. Garcia Math
Multiplying a Whole Number by a Mixed number
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Example:
Write equivalent fractions.
Multiply the numerators.
Multiply the denominators.
Rename any improper fraction
Multiplying a Fraction by a Mixed number
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Example:
Change the mixed number to improper fraction
Multiply the numerators.
Multiply the denominators.
Rename any improper fraction
Cross-Canceling
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We can reduce the numerator of one fraction with the denominator of another
Example:
Instead of reducing the fraction at the end of the problem, we can cross-cancel before we multiply.
In this example, 3 and 9 can both be divided by 3.
Also 2 and 4 can both be divided by 2.