Unit 3: Division with fractions check-in

A reciprocal is also known as what vocabulary term:

• opposite

• flip

• multiplicative inverse

• same

A number multiplied by it's reciprocal will

• always equal one

• sometimes equal one

• never equal one

• sometimes be a negative number

What is the reciprocal of 2

• 4

• 1/2

• 2/1

• 2/2

Tags

CCSS.5.NF.B.3

What is the reciprocal of this number?

• 8/29

• 29/8

• 5/24

• 8/15

 $\frac{1}{8}\div2=$  

•  $\frac{1}{16}$  

• 16

•  $\frac{1}{4}$   

• 4

Tags

CCSS.5.NF.B.3

CCSS.5.NF.B.7

 $\ \frac{2}{3}\div\frac{2}{9}$  

What 2 answers show how to solve this problem with the common denominator method?

•  $\frac{2}{3}\times\frac{2}{9}$  

•  $\frac{2}{3}\times\frac{9}{2}$  

•  $\frac{6}{9}\div\frac{2}{9}$  

•  $\frac{18}{27}\div\frac{6}{27}$  

4/9 ÷ 8/15

• 1/3

• 5/6

• 32

• 2/3

 $\frac{12}{654321}÷\ \frac{4}{654321}$  

•  $\frac{7851852}{2617280}$  

• 1/3

• 3

•  $\frac{2617280}{7851852}$  

What division sentence best matches this model.

• $\frac{3}{4}\times\frac{1}{8}$ = $\frac{3}{32}$

• $\frac{3}{4}\div\frac{1}{8}=\ 6$

• $\frac{1}{8}\div\frac{1}{6}=\ \frac{3}{4}$

• $\frac{3}{4}-\ \frac{1}{8}=\ \frac{5}{8}$

What is a divisor?

• The number you have left over

• The number being split up

• The number of groups you are splitting it into

• The answer to a division problem