Operations with Fractions Review

Operations with Fractions Review

Multiple Choice

What is a numerator?

• a whole number

• top number in a fraction

• bottom number in the fraction

• the term for a larger top number than bottom number

Multiple Choice

What word means: The bottom number of a fraction; number below the fraction bar.

• improper fraction
• whole number
• numerator
• denominator

Multiple Choice

The number in blue is a:
    7
   ----
   12

• mixed number
• numerator
• improper fraction
• denominator

Multiple Choice

The number in red is the:
4
---
 5

• numerator
• denominator
• improper fraction
• mixed number

Adding and Subtracting Fractions

When adding fractions, we need to have the same denominator.

Fill in the Blank

What method did we learn to help us add and subtract fractions with different denominators?

If the denominators are the same already...

You can just add or subtract the numerators

Multiple Choice

$\frac{10}{12}-\frac{5}{12}$

• $\frac{5}{12}$

• $\frac{15}{24}$

• $\frac{15}{12}$

Multiple Choice

 $\frac{\text{4}}{\text{8}}+\frac{\text{1}}{\text{8}}$  

• $\frac{\text{5}}{\text{7}}$

• $\frac{\text{3}}{\text{7}}$

• $\frac{\text{5}}{\text{8}}$

• $\frac{\text{3}}{\text{8}}$

Multiple Choice

Solve

• $\frac{\text{5}}{\text{14}}$

• $\frac{\text{3}}{\text{7}}$

• $\frac{\text{5}}{\text{7}}$

• $\frac{\text{5}}{\text{14}}$

Multiplying Fractions

Just multiply the numerators and then the denominators.

Multiple Choice

Find the product.

• 9/24

• 9/28

• 6/32

• 12/21

Multiple Choice

Find the product.

• 2/14

• 1/49

• 1

• 1/14

Dividing Fractions

Keep, Change, Flip

Keep the first fraction

Change to Multiplication

Flip the last fraction to the reciprocal

Multiple Choice

What is the reciprocal of $\frac{7}{8}$  ?

• 1

•  $\frac{14}{16}$  

•  $\frac{8}{7}$ 

•  $\frac{7}{8}$ 

Multiple Choice

Find the reciprocal of  $\frac{7}{11}$  

• 1 $\frac{1}{7}$  

•  $\frac{11}{11}$  

•  $\frac{11}{7}$  

•  $\frac{7}{7}$  

Multiple Choice

What is the recriprocal of 4/5

• 4/5

• 5/4

• 5/1

• 1/5

Multiple Choice

What is the recriprocal of 4/5

• 4/5

• 5/4

• 5/1

• 1/5