Addition and Subtraction of Fractions

Addition and Subtraction of Fractions

By Chanece Ross

4th Grade

Fill in the Blanks

The top number of the fraction is called the

.

Fill in the Blanks

The bottom number of the fraction is called the

.

Open Ended

Create your own unique addition problem using two fractions. Solve the problem.

Example: $$\frac{3}{9}+\frac{2}{9}=\frac{5}{9}$$  

Now think of your own two fractions and share yours.

HINT: Make sure your fractions have the same denominator.

HINT: If you cannot find the fraction tool, use the side slash / for your fractions.

​Example: ​ 4/8 + 3/8​

Look at the model. How can you use this to help solve the problem?

Adding Fractions with like denominators

Fill in the Blanks

Fill in the blank with the correct solution.

$\frac{3}{5}+\frac{1}{5}=\frac{?}{?}$  

Use the side slash / to show your answer as a fraction.

​Example: ​ 3/7 + 2/7​

​PAUSE

Stay on this slide and keep this activity open.

​

Go to your tab with the open portal for a live tutorial of the steps.

Adding Fractions with like denominators

Multiple Choice

Find: $$\frac{7}{12}+\frac{4}{12}$$  

• $$\frac{11}{28}$$  

• $$\frac{11}{12}$$  

• $$\frac{11}{24}$$  

• $$\frac{28}{144}$$  

Decomposing

A Fraction​

​To decompose a fraction means to break it into parts.

Multiple Choice

Decompose the fraction: $$\frac{7}{8}$$  

• $$\frac{4}{8}+\frac{4}{8}$$  

• $$\frac{1}{8}+\frac{2}{8}+\frac{3}{8}$$  

• $$\frac{4}{8}+\frac{3}{8}$$  

• $$\frac{3}{4}+\frac{4}{4}$$  

Multiple Select

Which of the following equation is true? Select all that apply.

• $$\frac{4}{5}=\frac{2}{5}+\frac{1}{5}$$  

• $$\frac{4}{5}=\frac{2}{5}+\frac{1}{5}+\frac{1}{5}$$  

• $$\frac{4}{5}=\frac{3}{5}+\frac{2}{5}$$  

• $$\frac{4}{5}=\frac{3}{5}+\frac{1}{5}$$  

Answer each of the questions as quickly as you can. You will 20 seconds for each.

Brain Break Time!​

Open Ended

What is your favorite part of the day?

Open Ended

If you had $100 to do anything you wanted with, what would you do with it?

Open Ended

What do you want to be when you grow up?

Open Ended

Describe your dream vacation?

Open Ended

What is your favorite movie ?

Open Ended

Create your own unique subtraction problem using two fractions. Solve the problem.

Example: $$\frac{8}{9}-\frac{3}{9}=\frac{5}{9}$$  

Now think of your own two fractions and share yours.

HINT: Make sure your fractions have the same denominator.

HINT: If you cannot find the fraction tool, use the side slash / for your fractions.

​Example: ​ 4/8 - 3/8​

Look at the model. How can you use this to help solve the problem?

Subtracting Fractions with like denominators

Fill in the Blanks

Fill in the blank with the correct solution.

$\frac{3}{5}-\frac{2}{5}=\frac{?}{?}$  

Use the side slash / to show your answer as a fraction.

​Example: ​ 8/12 - 1/12​

​PAUSE

Stay on this slide and keep this activity open.

​

Go to your tab with the open portal for a live tutorial of the steps.

Subtracting Fractions with like denominators

Multiple Choice

Solve: $$\frac{10}{11}-\frac{2}{11}$$  

• $$\frac{8}{11}$$  

• $$\frac{1}{11}$$  

• $$\frac{3}{11}$$  

• $$\frac{4}{11}$$  

Poll

How would you rate you skill level right now?

Take a moment to rate your understanding of adding and subtracting fractions now.

• 1 - I don't get it!

  I NEED HELP!

• 2 - I kind of get it.

  I NEED A LITTLE HELP.

• 3 - I GOT IT!

• 4 - I got it!

  I CAN TEACH IT TO A FRIEND!