Adding Fractions

2/12 + 3/12

• 5/12
• 5/24
• 6/12
• 6/144

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.3

Add 4/6 + 2/6=?

• 1 = 6/6

• 5/6

• 6/12

• 2/6

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.3

What must you have to add and subtract fractions?

• Common numerators
• Different numerators
• Different denominators
• Common denominators

Tags

CCSS.4.NF.A.2

CCSS.4.NF.C.5

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.4.NF.A.2

The number on the top of a fraction is called what?

• numerator
• denominator
• fractionator
• equivalent

Tags

CCSS.3.NF.A.1

The number on the bottom of a fraction is called what?

• numerator
• denominator
• equivalent
• improper

Tags

CCSS.3.NF.A.1

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.1

CCSS.4.NF.A.2

2/5 + 3/10

• 7/10
• 5/10
• 1/2
• 5/15

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.3

5/8 + 1/4

• 7/8

• 6/8

• 3/4

• 2/3

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.3

What is the the next step to finding this answer?

• Add the numerators (1+1=2)
• Multiply 12 X 1 for both fractions to find a new numerator
  
• Multiply to find each new numerator by the multiple used to get 12. (3 X1) (4 X 1)
• This is a mistake, you don't need to convert to twelfths

Tags

CCSS.4.NF.A.1

CCSS.4.NF.A.2