Adding Fractions with Uncommon Denominators

What is the first step to add or subtract fractions with different denominators?

• Multiply the numerators

• Find a common denominator

• Convert the fractions to have the same numerator

• Add or subtract the denominators

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

What is the first step in adding or subtracting fractions?

• Divide the denominators

• Add the numerators

• Multiply the numerators

• Find a common denominator

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

What is the process of finding a common denominator for fractions?

• Find the least common multiple (LCM) of the denominators

• Ensure the fractions have the same denominator

• Add or subtract the numerators

• Divide both the numerator and denominator by their greatest common divisor (GCD)

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

What is the first step for adding or subtracting fractions?

• Add or subtract the numerators

• Ensure the fractions have the same denominator

• Simplify the resulting fraction

• Find a common denominator

Tags

CCSS.7.NS.A.1C

What is the sum of these fractions in lowest terms?

• 4/5

• 3/20

• 17/20

• 4/20

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

What should be done after finding a common denominator?

• Multiply the denominators

• Add or subtract the numerators

• Multiply the numerators

• Divide the denominators

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

What is the second step for adding or subtracting fractions?

• Simplify the resulting fraction

• Find a common denominator

• Add or subtract the numerators

• Ensure the fractions have the same denominator

Tags

CCSS.7.NS.A.1C

• 1
• 3/6
• 1/2
• 2

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Q1. What is the result of 14/16?

• 14/16

• 7/8

• 8/7

• 4/10

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