Adding and Subtracting Basic 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.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

What is the least common denominator you could use to subtract 1/3 and 1/4?

• 3
• 4
• 24
• 12

• 5 1/2
• 1 1/6
• 5 5/14
• 4 19/24

Tags

CCSS.7.NS.A.1C

• 5 1/2
• 1 1/6
• 5 5/14
• 4 19/24

Tags

CCSS.7.NS.A.1C

• 5 1/2
• 1 1/6
• 5 5/14
• 4 19/24

Tags

CCSS.7.NS.A.1C

8/9 - 1/3 = 

• 7/6
• 5/9
• 2/3
• 8/27

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

What is the difference of 7/8 - 1/3?

• 6/5
• 8/11
• 6/8
• 13/24

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

13/15 - 3/4

• 10/9
• 39/60
• 7/60
• 97/60

Tags

CCSS.7.NS.A.1C

What is the difference of these fractions in lowest terms?

• 7/9
• 1/5
• 12/20
• 1/20

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2