Addition and Subtraction of Fractions (Cornell Notes)

What is the problem? James walked his dog / of a mile in the morning and / in the afternoon.

• James walked his dog 2/5 of a mile in the morning and 1/3 in the afternoon.

• James walked his dog 1/2 of a mile in the morning and 1/4 in the afternoon.

• James walked his dog 3/4 of a mile in the morning and 1/5 in the afternoon.

• James walked his dog 1/3 of a mile in the morning and 2/5 in the afternoon.

Tags

CCSS.4.NF.B.3A

What operation do we use? We need to ________ the fractions to find the total.

• add

• subtract

• multiply

• divide

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

What must we find before adding? We must find a common _____________.

• denominator

• numerator

• product

• sum

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

What is the lowest common denominator of 5 and 3?

• 15

• 8

• 10

• 5

Rename 2/5 with denominator 15. 2/5 = ___/15.

• 6/15

• 3/15

• 5/15

• 9/15

Tags

CCSS.3.NF.A.3B

CCSS.4.NF.A.1

Rename 1/3 with denominator 15. 1/3 = ___/15.

• 5/15

• 3/15

• 1/15

• 10/15

Tags

CCSS.3.NF.A.3B

CCSS.4.NF.A.1

Add the numerators. 6 + 5 = ___/15.

• 11/15

• 10/15

• 12/15

• 9/15

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Worksheet 1 – Addition of Fractions (Cornell Notes) Final Answer: James walked ___/15 of a mile total.

• 11/15

• 9/15

• 13/15

• 7/15

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Who hiked more?

• AJ hiked 4/5 of the trail. Caleb hiked 1/2.

• Caleb hiked 4/5 of the trail. AJ hiked 1/2.

• AJ hiked 1/2 of the trail. Caleb hiked 4/5.

• Both hiked the same distance.

Tags

CCSS.4.NF.A.2

What operation do we use? To find the __________, we subtract.

• difference

• sum

• product

• quotient

Tags

CCSS.2.OA.A.1