Add and Subtract Mixed Numbers with Unlike Denominators Regrouping

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.7.NS.A.1C

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

What is the sum?

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Find the difference.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

• denominators.

• 4   19/5

• 4 5/10

• 4 19/25

• 4 5/10

• 4 5/10

• 4 19/25

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

What is the sum?

• 1

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

• A
• B
• C
• D

Tags

CCSS.4.NF.B.3A

• 11/12
• 9/16
• 9/24
• 1/12

Tags

CCSS.4.NF.B.3A

When the denominators are not the same, I must find a...

• common numerator

• common denominator

• equivalent fraction

• mixed number

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

A number with a whole number and a fraction part is called a/an ______________.

• Improper Fraction

• Proper Fraction

• Mixed Number

• Simplest Form Fraction

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B