Lesson #9

Lesson #9

Adding Fractions

When we add fractions with unlike denominators we use methods we've learned in order to make our denominators the same.

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​Adding Fractions with Unlike Denominators:

Multiple Choice

What is one method we can use to add fractions with unlike denominators?

• Most Common Denominator

• Equivalent Fractions

• Butterfly Method

Multiple Choice

3/4 + 1/7 =

• 4/11

• 4/28

• 25/28

• 17/28

Mixed Number and Improper Fractions

A number that has a whole number and a fraction together.

Mixed Number

Improper Fraction

A fraction that has a larger numerator than the denominator.

Improper Fraction to Mixed Number

Multiple Choice

34/5

• 6 4/5

• 1 5/5

• 6 4/4

• 5 1/5

Multiple Choice

23/3

• 6 1/3

• 6 2/3

• 7 2/3

• 7 3/3

Multiple Choice

13/2

• 6 1/3

• 5 1/3

• 6 1/2

• 1/2

Add fractions making like units numerically

Multiple Choice

1/4 + 9/8 =

• 1 3/8

• 10/12

• 10/32

• 1 3/4

Multiple Choice

3/8 + 3/7 =

• 6/15

• 6/56

• 45/56

• 9/56

Multiple Choice

4/9 + 4/7 =

• 1 60/63

• 1 1/63

• 8/63

• 16/63

Multiple Choice

1/5 + 2/3 =

• 3/8

• 3/15

• 13/15

• 1

Multiple Choice

3/4 + 5/6 =

• 15/24

• 1 7/12

• 1 7/15

• 8/24

Open Ended

What do we need in order to add fractions with unlike denominators?