Add and Subtract Unlike Fractions Review

What is the best Common Denominator for the Given Problem?

• 48

• 24

What is the difference of the given problem?

• 
• 
• 
• 

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Following the integer rules, would you add or subtract the fractions?

• add, the answer would be positive

• add, the answer would be negative

• subtract, the answer will be positive

• subtract the answer will be negative

Tags

CCSS.7.NS.A.1C

3/10 - (-1/4)

• 11/20

• 3/15

• 15/20

• 3/4

Tags

CCSS.7.NS.A.1C

(-7/8) + 1/3

• -13/24

• -11/24

• 11/12

• 12/24

Tags

CCSS.7.NS.A.1C

(-1/15) + (-3/5)

• -2/3

• 2/3

• 1/4

• -1/4

Tags

CCSS.7.NS.A.1C

3/8 - (-1/4)

• 5/8

• 3/4

• 4/8

• -5/8

Tags

CCSS.7.NS.A.1C

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

• 3

• 4

• 7

• 12

Is the problem solved correctly?

• Yes, the student added correctly.

• No, you cannot add unlike denominators

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Look at the problem. What step is taking place?

• Add the numerators, then add the denominators

• Add the denominators (3 + 4 = 7).

• Simplify the answer

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2