Adding Fractions with Common Denominators

What is the first step in adding fractions with common denominators?

• Add the denominators

• Check the denominators

• Multiply the numerators

• Simplify the fractions

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

What do you do with the denominator when adding fractions with the same denominator?

• Divide it by the number of fractions

• Leave it the same

• Add it together

• Multiply it by 2

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Why is it important to check denominators when adding fractions?

• To ensure they are different

• To check if the fractions are simplified

• To make sure they are common

• To decide if we need to multiply

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

What does it mean if fractions have a 'common denominator'?

• Their numerators are the same

• They cannot be added together

• Their denominators are different

• Their denominators are the same

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

In the example with 2/4 + 1/4, what is the sum?

• 4/4

• 1/2

• 3/8

• 3/4

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

What is the result of adding 4/7 and 2/7?

• 1

• 6/14

• 2/7

• 6/7

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

How do you simplify the fraction 6/9?

• By subtracting 3 from both

• By multiplying both by 3

• By dividing both by 3

• By adding the numerator and denominator

What is the simplified form of 6/9?

• 2/3

• 6/9

• 3/6

• 1/2

What is a common factor of 6 and 9?

• 9

• 2

• 3

• 6

After adding fractions with a common denominator, what should you always attempt to do if possible?

• Change the denominator

• Simplify the fraction

• Multiply the result by 2

• Convert it to a decimal