Adding Mixed Numbers

Basic concepts and methods for adding mixed numbers.

Definition

• Mixed Number = A mixed number is a whole number with a fraction attached.

• Example = 3 4/5, This is read as three and four fifths.

Addition of mixed numbers with

like denominators.If James has two and one eighth pizzas and Jane has two and five eighths pizzas, how many pizza’s do they have together.

2 1/8

+ 2 5/8

Step 1: Add the Fractions

1/8

+ 5/8 6/8

Addition of mixed numbers with

like denominators.If James has two and one eighth pizzas and Jane has two and five eighths pizzas, how many pizza’s do they have together.

Step 2: Add the whole numbers

2

+ 2

4

Addition of mixed numbers with

unlike denominators.If James has two and one eighth pizzas and Jane has two and three fourths pizzas, how many pizza’s do they have together.

2 1/8

+ 2 3/4

Step 1:Find a common denominator. For this problem we will use 8, since 8 is a multiple of 4.

Step 2: Add the Fractions

1/8

+ 6/8

1/8

+ 6/8

7/8

Addition of mixed numbers with

unlike denominators.If James has two and one eighth pizzas and Jane has two and three fourths pizzas, how many pizza’s do they have together.

Step 3: Add the whole numbers 2

+ 2

4

Addition of mixed numbers with

unlike denominators.

Step 4: Combine the whole number and the fraction. 2

+ 7/8

2 7/8

Adding Mixed Numbers

Presented By: Michael Lee Ratcliff II