MA19.5.10

Mathematics (2019) Grade(s): 5

MA19.5.10
Add and subtract fractions and mixed numbers with unlike denominators, using fraction equivalence to calculate a sum or difference of fractions or mixed numbers with like denominators.

Unpacked Content

Knowledge

Students know:

Strategies to determine if two given fractions are equivalent.
How to use a visual model to illustrate fraction equivalency.
Contextual situations for addition and subtraction.

Skills

Students are able to:

Use fraction equivalence to add and subtract fractions and mixed numbers with unlike denominators.

Understanding

Students understand that:
Addition and subtraction of fractions and mixed numbers with unlike units,

Require strategies to find equivalent fractions in a common unit, and the sum or difference will be expressed in the common unit.
Can be assessed for reasonableness of answers using estimation strategies.

Vocabulary

Fraction
Denominator
Numerator
Visual Model
Sum
Difference
Equivalence
Unlike denominators
Unlike units

Aligned Learning Resources

Exploring Improper Fractions With Pattern Blocks

Gallon Man Meets Fraction Friend: An Introductory Lesson on Adding Fractions with Unlike Denominators

Cupcake Mix Meets Fractions

Add & Subtract With Unlike Denominators StudyJam

Tune-up: Simplifying Fractions | Skills on Demand

Scale City | Proportions and Music in the Real World

Solving Fraction Problems in Ecotopia

Using Recipes to Add Fractions and Convert Improper Fractions to Proper Fractions or Mixed Numbers

Design by Adaptive Theme