# 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?

Give your answer as a mixed number.

- 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: **

Find . Give your answer as a mixed number.

- A
- B
- C
- D
- E