Multiply Fractions Review

Multiply Fractions Review

by Karen Martin

• ​Multiply the numerators

• ​Multiply the denominators

• ​Simplify if possible.

• ​Both are even, so divide each by 2.

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​You can simplify BEFORE you multiply by finding "buddies" with common factors.

Multiple Choice

$$\frac{4}{5}\times\frac{5}{6}$$   Remember to simplify.

• $$\frac{9}{11}$$  

• $$\frac{2}{3}$$  

• $$\frac{20}{30}$$  

• $$\frac{4}{6}$$  

Multiple Choice

$$\frac{1}{3}\times\frac{2}{3}$$   Remember to simplify.

• $$\frac{2}{9}$$  

• $$\frac{2}{3}$$  

• $$\frac{3}{6}$$  

• $$\frac{3}{9}$$  

Multiple Choice

$$15\times\frac{3}{5}$$   Remember to simplify.

• $$\frac{18}{5}$$  

• $$\frac{45}{5}$$  

• 9

• $$5\frac{1}{5}$$  

Multiple Choice

$$6\times\frac{1}{8}$$   Remember to simplify.

• $$\frac{3}{4}$$  

• $$\frac{6}{8}$$  

• 6

• $$6\frac{1}{8}$$  

Fill in the Blank

Change to an improper fraction.

$$4\frac{3}{5}$$  

Fill in the Blank

Change to an improper fraction.

$$1\frac{5}{6}$$  

​To Multiply mixed numbers:

* change mixed numbers to improper fractions

(multiply and add)

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​* simplify if possible

​

​* multiply numerators

​

​* multiply denominators

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​* simplify your answer.

Multiple Choice

$$5\frac{1}{3}\ \times3\text{ }\frac{3}{4}$$  

• 9

• $$15\ \frac{1}{4}$$  

• $$\frac{15}{4}$$  

• 20

Multiple Choice

$$1\frac{1}{4}\ \times5\text{ }\frac{2}{5}$$  

• 4

• $$6\ \frac{3}{4}$$  

• $$5\ \frac{1}{10}$$  

• 100

Good luck on your test!​