Adding Mixed Numbers

How do you add mixed numbers?

• 1. Add the whole numbers together, then add the fractions together, and convert to a mixed number if necessary.

• 2. Multiply the whole numbers and add the fractions together.

• 3. Subtract the whole numbers and add the fractions together.

• 4. Add the fractions first, then add the whole numbers together.

What is the greatest common factor (GCF) of 8 and 12?

• 2

• 3

• 4

• 6

How do you simplify the fraction 4/10?

• Divide both the numerator and denominator by 2 to get 2/5.

• Multiply both the numerator and denominator by 2 to get 8/20.

• Add 2 to both the numerator and denominator to get 6/12.

• Subtract 2 from both the numerator and denominator to get 2/8.

What is an improper fraction?

• A fraction where the numerator is less than the denominator, such as 3/4.

• A fraction where the numerator is equal to the denominator, such as 5/5.

• A fraction where the numerator is greater than or equal to the denominator, such as 9/4.

• A fraction that cannot be simplified, such as 8/4.

What is the first step in adding mixed numbers?

• Add the whole numbers together.

• Convert the mixed numbers to improper fractions.

• Find a common denominator.

• Add the fractions first.

What is the sum of 5 1/9 and 8 8/9?

• 12

• 13

• 14

• 15

What is the process of reducing a fraction?

• Dividing the numerator and denominator by their greatest common factor.

• Multiplying the numerator and denominator by the same number.

• Adding the numerator and denominator together.

• Subtracting the numerator from the denominator.

What is the sum of 2 2/10 and 5 1/5?

• 6 1/2

• 7 1/5

• 7 3/10

• 8 1/10

What is the sum of 2/5 and 1/5?

• 1/5

• 2/5

• 3/5

• 4/5

What do you do if the sum of the fractions is greater than 1?

• Convert the improper fraction to a mixed number and add it to the whole number.

• Ignore the fractions and use only the whole numbers.

• Multiply the fractions by 2 to make them whole.

• Subtract 1 from the sum of the fractions.