Add Two Fractions With Unlike Denominators

2/6 + 2/8 =

• 4/14

• 4/8

• 7/12

• 8/16

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

When you add or subtract fractions with unlike denominators you..

• Find the greatest common factor to change your denominator

• Change the denominator by picking a random number then divide

• Find the least common multiple to change your denominator

• none of these are true

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

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.5.NF.A.1

CCSS.5.NF.A.2

5/10 + 8/5

• 5/9

• 1/10

• 2 1/10

• 2 2/10

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Carefully following a recipe, Ben used exactly 5/8 of a cup of oil and 3/4 of a cup of water. How many cups of liquid did Ben use in all?

• 1/8

• 2/3

• 1 1/2

• 1 3/8

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Marty made two types of cookies.  He used 2/3 cup of sugar for one recipe and 1/4 cup  of sugar for the other.  How much sugar did he use in all? 

• 5/12

• 3/7

• 11/12

• 1/3

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

What is the sum of 1/2 + 1/3 + 1/6?

• 3/14

• 3/11

• 1

• 6/8

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

• 2/5
• 5/6
• 4/6
• 1/5

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Q1. What is the result of 14/16?

• A) 14/16

• B) 7/8

• C) 8/7

• D) 4/10

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

2/5 + 3/10

• 7/10

• 5/10

• 1/2

• 5/15

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2