Adding and Subtracting Fractions

What number could be a common denominator for these two fractions?
2/3   and   3/4

• 3
• 4
• 7
• 12

What number could be a common denominator for these two fractions?
1/5   and   5/6?

• 30
• 11
• 6
• 5

What number could be a common denominator for these two fractions?
3/10   and   1/5

• 5
• 10
• 15
• These numbers do not have a common denominator

Tags

CCSS.4.NF.A.2

What number could be a common denominator for these three fractions?
1/2   and   1/3   and   1/4

• 9
• 8
• 12
• 6

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Fill in the blank in order to create a true number sentence:
1/2 = __ /8

• 2
• 4
• 6
• 8

Tags

CCSS.3.NF.A.3B

CCSS.4.NF.A.1

Fill in the blank in order to create a true number sentence:
3/5 = __ /10

• 6
• 15
• 5
• 10

Tags

CCSS.3.NF.A.3B

CCSS.4.NF.A.1

Fill in the blank in order to create a true number sentence:
1/3 = __ /30

• 3
• 5
• 10
• 15

Tags

CCSS.3.NF.A.3B

CCSS.4.NF.A.1

Fill in the blank in order to create a true number sentence:
__ /12 = 9/36

• 1
• 2
• 3
• 4

Tags

CCSS.3.NF.A.3B

CCSS.4.NF.A.1

1/3 - 1/2 = 

• -1/6
• 2/6
• -3/6
• 5/6

3/4 + 2/8 = 

• 1
• 5/12
• 6/32
• 5/8