Lesson 8 - Dividing Rational Numbers

Lesson 8 - Dividing Rational Numbers

Poll

Will the quotient be positive or negative?

 $\frac{-6.64}{-0.4}$  

• Positive

• Negative

Multiple Choice

Which number will go on the inside of the long division problem?

 $\frac{-6.64}{-0.4}$  

• -0.4

• -6.64

Multiple Choice

Which number will go on the outside of the long division problem?

 $\frac{-6.64}{-0.4}$  

• -0.4

• -6.64

Poll

How many spaces should we move the decimal on the outside so -0.4 is a whole number?

• 1

• 2

• 3

• 4

Poll

How many spaces should we move the decimal on the inside?

• 1

• 2

• 3

• 4

Multiple Choice

What is the reciprocal? Hint: Flip the fraction upside down!

 $\frac{4}{5}$  

•  $\frac{-4}{5}$  

•  $\frac{-4}{-5}$  

•  $\frac{5}{4}$  

Multiple Choice

What is the reciprocal? Hint: Flip the fraction upside down!

 $\frac{-5}{2}$  

•  $\frac{2}{-5}$  

•  $\frac{-2}{-5}$  

•  $\frac{2}{5}$  

Multiple Choice

What is the reciprocal? Hint: Write as a fraction, then flip the fraction upside down!

 $-7$  

•  $\frac{-7}{1\ }$  

•  $\frac{1}{7}$  

•  $\frac{1}{-7}$  

Poll

 $\frac{-5}{12}\div\frac{2}{3}$  

Which fraction stays the same?

•  $\frac{-5}{12}$  

•  $\frac{2}{3}$  

Poll

 $\frac{-5}{12}\div\frac{2}{3}$  

Which fraction becomes its reciprocal?

•  $\frac{-5}{12}$  

•  $\frac{2}{3}$  

Multiple Choice

What is the reciprocal of  $\frac{2}{3}$  

•  $-\frac{2}{3}$  

•  $\frac{2}{3}$ 

•  $\frac{-3}{2}$  

•  $\frac{3}{2}$