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Adding and Subtracting Fractions

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Adding and Subtracting Fractions worksheet preview

Adding and Subtracting Fractions

Fraction strips and number line illustration

📚 Part 1: Same Denominators

1. Solve these fraction additions with the same denominator:

a) 2/8 + 3/8 = _______

b) 1/6 + 4/6 = _______

c) 3/10 + 2/10 = _______

2. Solve these fraction subtractions with the same denominator:

a) 5/8 - 2/8 = _______

b) 7/10 - 3/10 = _______

c) 5/6 - 1/6 = _______

3. Which of these equals 3/4?

1/4 + 1/4

2/4 + 1/4

4/4 - 2/4

1/4 + 3/4

🔄 Part 2: Different Denominators

4. Find the equivalent fractions, then add:

a) 1/4 + 1/8 = ___/8 + 1/8 = _______

b) 1/3 + 1/6 = ___/6 + 1/6 = _______

c) 1/2 + 1/4 = ___/4 + 1/4 = _______

5. Show your working to solve this problem:

3/4 - 1/8 = ?

6. Circle the fractions that need to be renamed before adding:

2/6 + 1/6

1/4 + 1/8

3/10 + 2/10

1/2 + 1/6

💭 Part 3: Problem Solving

7. Sarah ate 2/8 of a pizza and Tom ate 3/8 of the same pizza. How much pizza did they eat altogether?
8. A recipe calls for 3/4 cup of flour. If you have already added 1/4 cup, how much more flour do you need?
9. Explain in your own words: Why do fractions need the same denominator before you can add or subtract them?
10. Challenge: Use fraction strips or a number line to help solve 2/3 - 1/6. Show your thinking:

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