LCD Sum and Difference of Fractions

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

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

• 2
• 14
• 7
• 28

• 14/16
• 7/8
• 8/7
• 4/10

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

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

• numerator
• denominator
• fractionator
• equivalent

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

8/9 - 1/3 = 

• 7/6
• 5/9
• 2/3
• 8/27

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

5/8 - 1/2 

• 9/8
• 1 1/8
• 1/8
• 3/8

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

What number could be a common denominator for these two fractions?
1/5   and   5/6?

• 30
• 11
• 6
• 5

5/6 - 3/8 =

• 12/24

• 11/24

• 1/2

• 7/12

Tags

CCSS.7.NS.A.1C

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

Add, simplify if needed.
1/4 + 2/6 =

• 1 1/12
• 12/12
• 7/12 
• 5/12

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2