Multiplying Fractions and Mixed Numbers Lesson 23

Multiplying Fractions and Mixed Numbers

Multiplying Mixed Numbers

Recap:

• Step 1: Convert mixed numbers to improper fractions using the MAD method.

• Step 2: Improper Fractions are then multiplied straight across to create a new fraction.

• Step 3: Simplify your new fraction if needed (or wait until the end)

• Step 4: Complete your problem by dividing your numerator by the denominator

Fill in the Blank

When I make a Mixed number, first I ______ (multiply/divide/add) the denominator and whole number.

Fill in the Blank

Then I ____ (multiply/divide/add) that product to the numerator.

Fill in the Blank

Finally, the _____ (numerator/denominator) stays the same and this creates my new improper fraction.

Multiple Choice

When I multiply a fraction times a fraction I multiply...

• Only the tops, straight across

• Only the bottoms, straight across

• Straight across, both top and bottom

• With a calculator

Multiple Choice

When multiplying any kind of fraction by a whole number, the whole number must...

• have a 1 under it

• have a decimal in it

• be turned into a mixed number

Reducing a Fraction

When reducing a fraction, you can divide both the top and bottom number by the same number.

Multiple Choice

Multiply:

3/4 x 5/6 =

(don't forget to reduce your answer)

• 15/24

• 3/8

• 5/8

• 4/8

Multiple Choice

Solve:

1 ⅔ x 4 =

• 20/3

• 6 ⅔

• 5/3

• 4 ⅔

Multiple Choice

Solve:

4 ½ x 2 ¾ =

• 11/4

• 8 ⅜

• 12 ⅜

• 99/8