🍕 Part 1: Understanding Common Denominators

1. Circle the pairs of fractions that have the same denominator:

1/4 and 3/4

1/2 and 1/3

2/5 and 4/5

1/6 and 1/8

2. What is 1/4 + 2/4?

3/4

3/8

1/2

2/4

3. What is 5/6 - 2/6?

📏 Part 2: Finding Common Denominators

4. To add 1/2 + 1/4, what common denominator should we use?

2

4

6

8

5. Complete this addition problem. Show your working:

1/2 + 1/4 = ?

Step 1: Change 1/2 to fourths: 1/2 = ____/4

Step 2: Add: ____/4 + 1/4 = ____/4

6. Solve these fraction problems. Show your working:

a) 3/8 + 2/8 = ________

b) 7/10 - 3/10 = ________

c) 1/3 + 1/6 = ________ (Hint: Use 6 as the common denominator)

🎨 Part 3: Visual Fraction Models

7. Draw a number line from 0 to 1. Mark and label these fractions: 1/4, 1/2, 3/4

8. Draw fraction strips to show 2/5 + 1/5. Colour the parts to show your answer.

9. Use the fraction strips below to solve 3/4 - 1/4. Explain your answer:

🧩 Part 4: Problem Solving

10. Match each problem with its correct answer:

1. 1/6 + 2/6

2. 5/8 - 3/8

3. 1/2 + 1/4

4. 4/5 - 1/5

A. 3/4

B. 1/2

C. 3/5

D. 1/4

11. Sarah ate 2/8 of a chocolate bar in the morning and 3/8 in the afternoon. How much chocolate bar did she eat altogether?

12. Tom had 7/10 of a metre of ribbon. He used 4/10 of a metre for a project. How much ribbon does he have left?

💭 Part 5: Reflection and Challenge

13. Check all the strategies that help when adding or subtracting fractions:

Make sure the denominators are the same

Add or subtract the numerators only

Use visual models like fraction strips

Always add the denominators together

Find equivalent fractions when needed

14. Explain in your own words why we need common denominators to add or subtract fractions:

15. Challenge: Can you solve this harder problem? 2/3 + 1/6 = ?

Hint: What number do both 3 and 6 divide into evenly?

Adding Subtracting Fractions

Adding Subtracting Fractions

🍕 Part 1: Understanding Common Denominators

📏 Part 2: Finding Common Denominators

🎨 Part 3: Visual Fraction Models

🧩 Part 4: Problem Solving

💭 Part 5: Reflection and Challenge

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