Adding Unit Fractions with Same Denominator

To add or subtract unit fractions with the same denominator, simply combine the ________________ and keep the denominator the same.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Why is it important to have the same denominators when adding or subtracting unit fractions?

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Adding and subtracting unit fractions is a simple process. Just make sure the ________________ are the same, and then combine or subtract the numerators.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

What is the result of adding 1/4 and 1/4?

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

What is the sum of these fractions in lowest terms?

• 5/12

• 5/24

• 6/12

• 6/144

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

What is the sum of these fractions in lowest terms?

• 7/18

• 7/9

• 12/9

• 12/81

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

What is 3/4 + 1/4 = ?

Mathematical Equivalence

ON

Tags

CCSS.4.NF.B.3A

What is the result of adding 1/3 and 1/3?

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

What is the result of adding 1/6 and 1/6?

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

The BOTTOM of the fraction.

• numerator

• multiple

• denominator

• factor

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B