Addition of Unlike Mixed Fractions

When adding and subtracting fractions, which value needs to be the same in all values being added/subtracted?

• Numerator

• Denominator

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

What is the process of making two fractions with unlike denominators able to be added or subtracted called?

• Finding the least common multiple or least common denominator

• Addition

• Multiplication

• Reverse multiplication

Tags

CCSS.7.NS.A.1C

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

What is the first step of adding or subtracting two fractions?

• Checking if the numerators are the same

• Checking if the denominators are the same or different

• Checking that the fractions are equal

• Adding or subtracting

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Find Lowest Common Denominator & solve
1     5/7  +   14    1/2

• 15  1/14

• 15  6/21

• 15  17/21

• 15  17/14

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Find Lowest Common Denominator & solve
4    1/2    +   14    6/12 =

• 18   7/14

• 18   12/12

• 18   24/24

• 18

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

Add the mixed numbers vertically. Simplify if needed.

Tags

CCSS.7.NS.A.1C

What is 2 1/3 + 1 1/3?

• 1

• 2

• 2 1/3

• 3 2/3

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

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