Add fractions with unlike denominators

• 1
• 3/6
• 1/2
• 2

3/8 + 2/4 =

• 5/12
• 5/8
• 7/8
• 6/8

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

5/6 + 1/12 =

• 6/18
• 5/60
• 11/12
• 10/12

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

1/9 + 2/27

• 3/27
• 5/27
• 3/27
• 3/36

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

4/8 + 1/3 =

• 5/11
• 4/8
• 13/24
• 4/11

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

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

Paula made some chili with 1/2 of a can of black beans and 3/8 of a can of pinto beans. How many cans of beans did Paula use in all?

• 4/10
• 4/8
• 7/8
• 1/8

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Debbie mailed a letter on Monday morning. The letter traveled 1/6 of a mile on Monday. It traveled 1/3 more of a mile on Tuesday, reaching its destination on Tuesday afternoon. How far did Debbie's letter travel in all?

• 2/18
• 2/9
• 2/6
• 1/2

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

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

• 3
• 4
• 7
• 12

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2