Multiplying and Dividing fractionsx

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Transcript Multiplying and Dividing fractionsx

Vocabulary
Reciprocal-the new fraction that is formed
when the numerator and the denominator
are reversed.
How to multiply a fraction by a fraction:
Step 1: Multiply the top numbers (the numerators).
Step 2: Multiply the bottom numbers (the denominators).
Step 3: Simplify the fraction if needed.
How to multiply a fraction by a mixed
number:
Step 1: Change the mixed number into an improper fraction
Step 2: Multiply the top numbers (the numerators).
Step 3: Multiply the bottom numbers (the denominators).
Step 4: Simplify the fraction if needed.
How to multiply a fraction by a whole
number:
Step 1: Change the whole number into a fraction.
Step 2: Multiply the top numbers (the numerators).
Step 3: Multiply the bottom numbers (the
denominators).
Step 4: Simplify the fraction if needed.
How to divide a fraction by a fraction:
Step 1: change the second number into the reciprocal.
Step 2: Multiply the first fraction by the reciprocal.
Step 3: Simplify the fraction if needed.
How to divide a fraction by a mixed
number:
Step 1: Change the mixed number into an improper fraction
Step 2: Change the second number into the reciprocal.
Step 3: Multiply the first fraction by the reciprocal.
Step 4: Simplify the fraction if needed.
How to divide a fraction by a whole number:
Step 1: Change the whole number into a
fraction.
Step 2: Change the second number into the
reciprocal.
Step 3: Multiply the first fraction by the
reciprocal.
Step 4: Simplify.
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• Peter's Party Zone sells cups in packages of 6 and plates
in packages of 8 . Shaniya is hosting a birthday party for
her little sister and wants to have the same number of
each item.What is the least number of packages of
plates Shaniya needs to buy?