#Hardin Common Denominators, Sums and Differences

What is the common denominator?

• 10

• 5

• 3

• 15

Tags

CCSS.4.NF.A.2

CCSS.4.NF.A.1

Which is the LOWEST common denominator?

• 24

• 6

• 12

• 36

Tags

CCSS.4.NF.A.2

CCSS.4.OA.B.4

Which of the following is NOT a common denominator?

• 8

• 4

• 16

• 32

Tags

CCSS.4.NF.A.2

What is a synonym for the word common

• different

• same

• multiple

• fraction

Tags

CCSS.RI.5.4

CCSS.RI.6.4

CCSS.RL.5.1

CCSS.RL.5.4

CCSS.RL.6.4

What is the common denominator?

• 14

• 6

• 21

• 18

Tags

CCSS.4.NF.A.2

What is this as a mixed number in lowest terms?

• 
• 
• 
• 

Tags

CCSS.4.NF.B.3

• 
• 
• 
• 

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

• 
• 
• 
• 

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

What is the the next step to finding this difference?

• Subtract the numerators

• Multiply both denominators by 3

• Multiply the numerator and denominator by the same factor

• Find a common denominator

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Is this a correct answer?

• Yes, the student added correctly.

• No, you cannot add unlike denominators

• No, 5 + 7 is not 12

• No, 2 + 3 is not 5

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2