Adding Fractions with Like Denominators

Teaching Notes

This collection uses standard vertical fraction notation (numerator over denominator) to help students visualize the parts.

Vocabulary

Numerator: The top number in a fraction.

Denominator: The bottom number in a fraction.

Common Mistakes

• Adding denominators.
• Adding denominators
• Simplifying incorrectly
• Confusing numerator/denominator
• Not understanding fraction parts

Differentiation

Discussion Questions

• Does writing the fraction differently change its value?
• What does the denominator represent?
• Why do we only add the numerators?
• How is this like adding whole numbers?
• When might you add fractions in real life?

Extension Activities

• Create word problems.

Parent Tip

Ask your child to explain how to combine two parts of the same pie.

Skill Cluster

Fractions

Estimated Time

15 minutes

Skills Practiced

Prerequisites

• 920
• Understanding fractions
• Identifying numerators and denominators
• Basic addition facts

Next Steps

• Subtracting like fractions
• Adding unlike fractions
• Adding mixed numbers
• Subtracting Like Fractions (Vertical)
• Adding Like Fractions (Horizontal)
• Simplifying Fractions