Add and Subtract Fractions Unlike Denominators

The image is showing process is to add unlike denominators fractions:

TRUE or FALSE

• TRUE

• FALSE

Tags

CCSS.7.NS.A.1C

Tags

CCSS.7.NS.A.1D

When Adding UNLIKE denominators fractions:

To find the denominator, you need to

• Multiply numerators

• Cross multiply the denominators

• Multiply denominators

• Add denominators

Tags

CCSS.7.NS.A.1C

Add

Tags

CCSS.4.NF.B.3A

• 8/10

• 7/10

• 8/15

• 11/15

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 sum of these fractions in lowest terms?

• 7/18

• 7/9

• 12/9

• 12/81

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

• 1
• 3/6
• 1/2
• 2

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

The image represent an addition of:

• Like denominators fractions

• Unlike denominators Fraction

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

3/5 + 1/4 = 

• 5/20

• 12/20

• 7/20

• 17/20

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2