Multiply Fractions

Multiplying Fractions with a Model

Multiple Choice

Which problem does the model represent?

• $$\frac{1}{5}\times\frac{2}{6}$$

• $$\frac{1}{3}\times\frac{2}{5}$$

• $$\frac{2}{5}\times\frac{1}{5}$$

• $$\frac{2}{5}\times\frac{2}{5}$$

Multiple Choice

$$\frac{1}{4}\times\ \frac{1}{3}=$$  

• $$\frac{2}{12}$$  

• $$\frac{1}{12}$$  

• $$\frac{6}{12}$$  

Multiple Choice

$$\frac{1}{2}\times\frac{1}{8}=$$  

• $$\frac{1}{4}$$  

• $$\frac{1}{16}$$  

• $$\frac{2}{16}$$  

Multiple Choice

This model shows

$$\frac{2}{4}\times$$  

• $$\frac{1}{5}$$  

• $$\frac{8}{20}$$  

• $$\frac{1}{4}$$  

Multiple Choice

This model shows

$$\frac{1}{3}\times$$  

• $$\frac{1}{3}$$  

• $$\frac{1}{2}$$  

• $$\frac{2}{8}$$  

Multiply a part x a part.

Remember "Of" means multiply!

Multiple Choice

Which model correctly shows the problem $$\frac{2}{6}\times\frac{1}{5}$$  ?

Multiply a part x a part.

The product will get smaller!

Multiple Choice

Which product is represented by the model?

• 2/3 of 3/4

• 6/12 of 2/3

• 1/2 of 3/4

• 1/12 of 2/3

Multiple Choice

Let's practice.  Remember to multiply across and then simplify if needed.

$$\frac{3}{5}\ x\ \frac{1}{2}$$  

• 3/7

• 3/10

• 4/7

• 3/25

Multiple Choice

Try another. Remember to cross reduce if possible.  

$$\frac{6}{9}\ x\ \frac{3}{6}$$  

• 1/3

• 9/15

• 18/54

• 1/2

Multiple Choice

$$\frac{1}{2}\ x\ \frac{3}{7}$$  

• 3/14

• 3/9

• 4/9

• 6/7

Multiple Choice

$$\frac{5}{8}\times\frac{4}{5}$$   Be sure to simplify. Cross reduce if possible.

• 2

• 20/40

• 1/2

• 9/13

Multiple Choice

What equation is represented by the model .

• 1/2 ✕ 1/3

• 1/3 ✕ 1/3

• 1/2 ✕1/6

• 1/5 ✕ 1/4

• 1/3 ✕ 1/7

Multiple Choice

Select a model that represents the answer $$\frac{4}{12}$$  

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

$$15\times\frac{3}{5}$$   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

• $$6\frac{1}{8}$$  

Multiple Choice

$$\frac{1}{8}\times\frac{1}{2}=$$  

• $$\frac{1}{8}$$  

• $$\frac{1}{16}$$  

• $$\frac{2}{16}$$  

• $$\frac{1}{5}$$  

Multiple Choice

• 3/40

• 4/40

• 3/5

• 5/24

Multiple Choice

$$\frac{3}{4}\times\frac{1}{6}$$  

• $$\frac{1}{8}$$  

• $$\frac{5}{24}$$  

• $$\frac{3}{10}$$  

• $$\frac{4}{18}$$  

Multiple Choice

$$\frac{1}{3\ }\times\ \frac{3}{5\ }=$$  

• $$\frac{1}{5}$$  

• $$\frac{3}{5}$$  

• $$\frac{9}{5}$$  

• $$\frac{5}{9}$$