Multiplying and Dividing Fractions

Multiplying and Dividing Fractions

This topic will be taught next week in class. It is ok if you do not completely understand how to multiply and divide fractions at the end of this lesson but try your best.

Multiplying Fractions

Multiply the top numbers

Multiply the bottom numbers

Reduce

Watch the video to the right

Multiple Choice

Solve. Make sure answer is in simplest form.

• $\frac{30}{40}$

• $10\frac{3}{4}$

• $$7\frac{1}{2}
  

• $\frac{3}{40}$

Multiple Choice

Solve. Make sure answer is in simplest form.

• $\frac{5}{8}$

• $\frac{8}{10}$

• $\frac{15}{8}$

• $\frac{8}{24}$

Multiple Choice

Solve. Make sure answer is in simpliest form

•  $\frac{5}{15}$  

•  $\frac{6}{25}$  

•  $\frac{3}{50}$  

•  $\frac{3}{25}$  

Dividing fractions

Use the Keep-change-flip method

Keep the first fraction the same

Change division to multiplication

Flip the second fraction

Now multiply and reduce

Watch the video to the right

Multiple Choice

Solve.

• 8 / 9
• 1/5
• 1
• 4/5

Multiple Choice

Find the quotient.

• 1  1/4
• 1
• 1  1/5
• 1  2/7

Multiple Choice

What is the quotient of these fractions in lowest terms?

• 6/40
• 6/10
• 3/5
• 12/20