Adding Fractions

Is this a correct answer?

• Yes, the student correctly added.
• 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

What is the least common denominator of 1/2 and 3/7?

• 2
• 14
• 7
• 28

Tags

CCSS.4.NF.A.2

CCSS.4.OA.B.4

Joe has listed the first 4 multiples of 7 as: 
7   14    22     28
Which one is incorrect?

• 7
• 14
• 22
• 28

Tags

CCSS.4.OA.B.4

How do I add this fractions? 

• 6/6
• 6/12
• 5/6
• 6/36

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

How do I add this fraction?

• 2/7
• 2/12
• 1/7
• 7/12

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

How do I add this fraction? 

• 5/8
• 20/32
• 4/12
• 8/5

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

How do I add this fraction? 

• 7/7
• 5/7
• 6/49
• 6/7

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Add these Fractions

• 2/4
• 3/4
• 4/8
• 1

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

What is the first step in solving this problem? 
⅘ + ½ =

• Add the top parts of the fraction
• Rewrite the fractions in the simplest form. 
• Find a common denominator. 
• Make each fraction into an improper faction. 

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

• 4/9
• 1/4
• 3/12
• 5/9

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2