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Simplifying Algebraic Fractions

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Simplifying Algebraic Fractions

Simplifying Algebraic Fractions

Algebraic fractions illustration

📚 Part 1: Understanding Algebraic Fractions

1. Which of the following are algebraic fractions? Circle all correct answers:

(3x + 5)/7

2/3

(x - 4)/9

15/x

(2y² - 8)/4

2. What is the first step when simplifying an algebraic fraction?

Cancel out all variables

Look for common factors in the numerator and denominator

Add the numerator and denominator together

Multiply by the reciprocal

🔢 Part 2: Basic Simplification

3. Simplify the following algebraic fractions. Show all working:

a) (6x)/12 = ___________

b) (15y)/25 = ___________

c) (8x²)/16x = ___________

d) (21a)/14 = ___________

4. Simplify: (4x + 8)/12

Step 1: Factor the numerator: 4x + 8 = _______(x + ____)

Step 2: Rewrite the fraction: _______(x + ____)/12

Step 3: Simplify: ___________

⚠️ Part 3: Common Mistakes

5. Identify the error in each incorrect simplification and provide the correct answer:

a) Incorrect: (x + 3)/6 = x/2 + 1/2

Error: _________________________________________________

Correct answer: ___________

b) Incorrect: (2x + 4)/2 = x + 4

Error: _________________________________________________

Correct answer: ___________

6. True or False: You can cancel terms that are added or subtracted in the numerator with the denominator.

True

False

Explain your answer: _________________________________________________

🧮 Part 4: Advanced Simplification

7. Simplify the following expressions. Show all working steps:

a) (3x - 15)/9

b) (5x² - 10x)/5x

c) (6y + 18)/12

d) (4a² - 8a)/16

8. Challenge Problem: Simplify (12x² - 24x + 36)/24

🔄 Part 5: Operations with Algebraic Fractions

9. Add the following algebraic fractions:

a) x/4 + 3x/4 = ___________

b) (2y)/6 + (4y)/6 = ___________

10. Subtract the following algebraic fractions:

a) (5x)/8 - (3x)/8 = ___________

b) (7a)/10 - (2a)/10 = ___________

11. Match each expression with its simplified form:
1. (6x + 12)/18
2. (10y - 20)/15
3. (8a)/24
4. (9x² - 18x)/27x
A. a/3
B. (x + 2)/3
C. (x - 2)/3
D. (2y - 4)/3

💭 Part 6: Reflection and Problem Solving

12. Explain in your own words the steps to simplify an algebraic fraction:
13. A student claims that (x + 5)/5 = x + 1. Is this correct? Explain why or why not:
14. Create your own algebraic fraction that simplifies to x + 3:
15. What is the most important thing to remember when simplifying algebraic fractions?

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