1. © 2007 M. Tallman

2. 1 Whole 7 1 7 1 7 1 3 3 7 24 7 1 Whole 7 1 7 1 7 1 7 1 7 1 7 1 7 1 7 1 7 1 7 1 7 1 7 1 7 1 7 1 7 1 7 1 7 1 7 1 7 1 7 1 7 1 7 1 7 1 7 1

3. © 2007 M. Tallman 10 + 7 = 17 Step 1: Multiply the denominator and the whole number. Step 2: Add the product and the numerator. Step 3: The sum becomes the numerator. Step 4: The denominator remains the same. 1 7 10 = 1 Whole 10 1 1 1 1 1 1 1 10 × 1 = 10 × + 10 1 1 1 1 1 1 1 1 1 1 17 10

4. © 2007 M. Tallman 16 + 5 = 21 Step 1: Multiply the denominator and the whole number. Step 2: Add the product and the numerator. Step 3: The sum becomes the numerator. Step 4: The denominator remains the same. 2 5 8 = 8 × 2 = 16 × + 21 8 8 1 8 1 8 1 8 1 8 1 1 Whole 8 1 8 1 8 1 8 1 8 1 8 1 8 1 8 1 8 1 8 1 8 1 8 1 8 1 8 1 8 1 8 1

5. © 2007 M. Tallman Step 2: Check to see if you can cross cancel. Step 3: Multiply the numerators and the denominators. Step 1: Change mixed numbers into improper fractions. Step 4: Simplify, if necessary. What’s the GCF? GCF: 2 What’s the GCF? GCF: 5 1 1 5 × 6 7 8 6 5 5 × 1 = 5 5 + 1 = 6 8 × 6 = 48 48 + 7 = 55 × 55 8 11 3 = 33 4 8 1 4 = × + × + 1 4

6. © 2007 M. Tallman Step 2: Check to see if you can cross cancel. Step 3: Multiply the numerators and the denominators. Step 1: Change mixed numbers into improper fractions. Step 4: Simplify, if necessary. What’s the GCF? GCF: 2 4 2 5 × 1 3 4 22 5 5 × 4 = 20 20 + 2 = 22 4 × 1 = 4 4 + 3 = 7 × 7 4 11 = 77 10 7 7 = × + × + 2

7. © 2007 M. Tallman Step 2: Check to see if you can cross cancel. Step 3: Multiply the numerators and the denominators. Step 1: Change mixed numbers into improper fractions. Step 4: Simplify, if necessary. 4 4 5 × 1 3 4 24 5 5 × 4 = 20 20 + 4 = 24 4 × 1 = 4 4 + 3 = 7 × 7 4 1 6 1 = 42 11 3 9 = × 5 × 5 1 What’s the GCF? GCF: 4 What’s the GCF? GCF: 5 × × + +