Adding and Subtracting Unlike Fractions

Do you have a whiteboard and marker?

• Yes! Of course!

• I'll go get one right now.

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CCSS.1.OA.A.1

Fill in the missing multiple.
3:  3, 6, 9, ___, 15, 18, 21

• 10
• 11
• 12
• 13

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CCSS.2.NBT.A.2

Fill in the Blank: Least _______ ________

• Common Multilpier
• Common Multiple
• Common Factor

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CCSS.4.OA.B.4

Which of the following is a multiple of 7?

• 28
• 48
• 71
• 45

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CCSS.4.OA.B.4

Which one is a multiple of 4?

• 33
• 22
• 18
• 24

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CCSS.4.OA.B.4

Name the LEAST COMMON MULTIPLE of 12 and 9.

• 18

• 12

• 36

• 108

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CCSS.4.OA.B.4

What is the least common multiple (LCM) of 2 and 5?

• 2
• 10
• 20
• 7

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CCSS.4.OA.B.4

Name the missing numerator.

• 12

• 3

• 6

• 9

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CCSS.3.NF.A.3A

CCSS.3.NF.A.3B

CCSS.4.NF.A.1

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CCSS.7.NS.A.1C

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CCSS.5.NF.A.1

CCSS.5.NF.A.2