Adding and Subtracting 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

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

• 7
• 14
• 22
• 28

Tags

CCSS.7.NS.A.1C

Find the sum.
1/2 + 2/5

• 3/7
• 3/10
• 9/10
• 1  1/10

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

2/5 +? = 7/10

• 3/10
• 3/5
• 9/10
• 1  1/10

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

What must you have in order to add fractions?

• different numerators
• common numerators
• common denominators
• opposite denominators

Tags

CCSS.7.NS.A.1C

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

2/3 + 1/6

• 3/9
• 1/6
• 5/6

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

5/6 + 5/18

• 1  1/9
• 10/24
• 1  2/9

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

What is ¹⁵/₁₆ - ¹²/₁₆?

• ¹/₃
• ⁴/₁₆ or ¹/₄
• ³/₁₆
• ²/₁₆ or ¹/₈

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D