Division with Fractions-Unit 3 Lesson 10.1

Division with Fractions-Unit 3 Lesson 10.1

Fractions are Division

Multiple Choice

There are 4 people in the Walton family, but there are only 3 waffles. How can the Waltons share the waffles equally?

• One person gets no waffles.

• Divide the waffles into 4 pieces.

• Divide the people into 3 pieces.

Multiple Choice

The equation to represent 3 waffles divided among 4 people is:

•  $3\ \div\ 4$  

•  $4\ \div\ 3$  

Multiple Choice

Another way to represent  $3\ \div\ 4$  is: 

•  $\frac{4}{3}$  

•  $\frac{3}{4}$  

Multiple Choice

Jodie and 7 friends share 12 oranges equally. How many oranges does each person get? What division equation shows the division?

• $12\ \div\ 8$

• $8\ \div\ 12$

Multiple Choice

Jodie and 7 friends share 12 oranges equally. How many oranges does each person get? You do not need to simplify.

•  $\frac{8}{12}$  

•  $\frac{12}{8}$  

Division is Multiplication (with Reciprocals)

Multiple Choice

When you divide by a fraction, you just need to multiply by the reciprocal to find the answer.

• yes

• no

Multiple Choice

Fractions are just mini division problems.

• yes

• no

Multiple Choice

When you multiply by the reciprocal, you will get the answer to the original division problem.

• yes

• no

Multiple Choice

You only want to use the reciprocal of the fraction (or whole number) you are dividing by.

• yes

• no

Multiple Choice

To divide with fractions, you should multiply by the

• reciprocal

• number you like best

• receipt

• calculator

Keep Change Flip is the same as multiplying by a fraction

Multiple Choice

 $3\ \div\ 10$  is the same as

•  $3\ \cdot\ \frac{1}{10}$  

•  $\frac{1}{3}\cdot\ 10$  

•  $\frac{1}{3}\cdot\ \frac{1}{10}$  

Multiple Choice

 $\frac{1}{2}\div\ 5$  is the same as 

•  $\frac{1}{2}\cdot\ \frac{1}{5}$  

•  $\frac{2}{1}\cdot\ 5$  

•  $\frac{2}{1}\cdot\frac{1}{5}$  

Multiple Choice

 $5\div8$  is the same as 

•  $\frac{1}{5}\cdot8$  

•  $\frac{1}{5}\cdot\frac{1}{8}$  

•  $5\cdot\frac{1}{8}$  

Multiple Choice

 $4\div\frac{1}{3}$  is the same as

•  $\frac{1}{4}\cdot\frac{3}{1}$  

•  $4\cdot\frac{3}{1}$  

•  $\frac{1}{4\ }\cdot\frac{1}{3}$  

Multiple Choice

 $\frac{1}{3}\div4$  is the same as 

•  $\frac{1}{3}\cdot\frac{1}{4}$  

•  $\frac{1}{3}\cdot\ \frac{4}{1}$  

•  $\frac{3}{1}\cdot\frac{1}{4}$  

Multiple Choice

 $7\div\frac{1}{2}$  

•  $7\cdot\frac{2}{1}$  

•  $\frac{1}{7}\cdot\frac{1}{2}$  

•  $7\cdot\frac{1}{2}$