Adding & 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

Tags

CCSS.4.NF.A.2

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

3/4 + 2/8 = 

• 1
• 5/12
• 6/32
• 5/8

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

2/3 + 1/2 = 

• 6/7
• 2/6
• 3/5
• 7/6

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

5/7 + 1/28 = 

• 6/35
• 12/196
• 21/28
• 1

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

1/2 + 1/3 + 1/5 = 

• 31/30
• 3/10
• 1/30
• These fractions cannot be added

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2