Add and Subtract Unlike Fractions Without Simplifying

What is the least common denominator you could use to subtract 1/6 and 1/4?

• 24

• 16

• 20

• 12

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Add these fractions.
1/2 + 1/3 =

• 5/6

• 2/5

• 1/5

• 1

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

What must you have to add and subtract fractions?

• Common numerators

• Different numerators

• Different denominators

• Common denominators

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

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

• 7/20

• 3/12

• 3/10

• 7/10

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

• 5/4

• 1 1/4

• 4/4

• 4/6

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

• 2/7

• 5/10

• 0/7

• 7/10

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

• 3/10

• 5/10

• 5/7

• 1 3/10

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

• 4/7

• 13/12

• 1 1/12

• 4/12

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

• 10/10

• 1

• 6/10

• 6/12

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2