# Lesson Worksheet: Adding and Subtracting Unlike Fractions Mathematics

In this worksheet, we will practice adding and subtracting up to three proper fractions with different denominators by finding common denominators.

Q1:

A group of students have been challenged to build the tallest possible tower out of rolled up newspapers.

Noura’s tower is m tall.

Osama’s tower is m tall.

Noura and Osama balance their towers on top of each other to make one taller tower.

How tall is their tower in total?

• A m
• B m
• C m
• D m
• E m

Q2:

On Saturday, Ali studied English for of an hour and he studied Math for of an hour. How many hours did Ali study in total?

• A of an hour
• B of an hour
• C of an hour
• D3 hours
• E hours

Q3:

Solve the following:

• A
• B
• C
• D
• E

Q4:

Use the fraction wall to calculate .

• A
• B
• C
• D
• E

Q5:

What is the total of and ?

Hint: Use the bar model to help.

• A
• B
• C
• D
• E

Q6:

Select the two fractions whose sum is greater than 1.

• A and
• B and
• C and
• D and
• E and

Q7:

How much water is there in both jugs altogether? Give your answer as a mixed number in the simplest form.

• A liters
• B liters
• C liters
• D liters
• E liters

Q8:

Find .

• A
• B
• C
• D
• E

Q9:

Complete this number sentence: .

Hint: Use the area model to help.

• A
• B
• C
• D
• E

Q10:

• A
• B
• C
• D
• E